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Finding the Fourth Proportional to 351,247.64, 526,871.48 and 85,008.20

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Solution

The fourth proportional to 351,247.64, 526,871.48 and 85,008.20 is: 127,512.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,247.64 : 526,871.48 = 85,008.20 : x
  2. Step 2: Convert to fraction form
    351,247.64/526,871.48 = 85,008.20/x
  3. Step 3: Cross multiply
    351,247.64x = 526,871.48 × 85,008.20
  4. Step 4: Simplify right side
    351,247.64x = 44,788,393,086.74
  5. Step 5: Solve for x
    x = 44,788,393,086.74/351,247.64
  6. Step 6: Final answer
    x = 127,512.30

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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.