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Finding the Fourth Proportional to 351,146.40, 526,719.60 and 345,897.60

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Solution

The fourth proportional to 351,146.40, 526,719.60 and 345,897.60 is: 518,846.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,146.40 : 526,719.60 = 345,897.60 : x
  2. Step 2: Convert to fraction form
    351,146.40/526,719.60 = 345,897.60/x
  3. Step 3: Cross multiply
    351,146.40x = 526,719.60 × 345,897.60
  4. Step 4: Simplify right side
    351,146.40x = 182,191,045,512.96
  5. Step 5: Solve for x
    x = 182,191,045,512.96/351,146.40
  6. Step 6: Final answer
    x = 518,846.40

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.