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Finding the Fourth Proportional to 343,897.40, 515,846.10 and 224,325.20

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Solution

The fourth proportional to 343,897.40, 515,846.10 and 224,325.20 is: 336,487.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,897.40 : 515,846.10 = 224,325.20 : x
  2. Step 2: Convert to fraction form
    343,897.40/515,846.10 = 224,325.20/x
  3. Step 3: Cross multiply
    343,897.40x = 515,846.10 × 224,325.20
  4. Step 4: Simplify right side
    343,897.40x = 115,717,279,551.72
  5. Step 5: Solve for x
    x = 115,717,279,551.72/343,897.40
  6. Step 6: Final answer
    x = 336,487.80

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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.