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Finding the Fourth Proportional to 457,800.31, 631,761.19 and 253,851.13

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Solution

The fourth proportional to 457,800.31, 631,761.19 and 253,851.13 is: 350,312.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,800.31 : 631,761.19 = 253,851.13 : x
  2. Step 2: Convert to fraction form
    457,800.31/631,761.19 = 253,851.13/x
  3. Step 3: Cross multiply
    457,800.31x = 631,761.19 × 253,851.13
  4. Step 4: Simplify right side
    457,800.31x = 160,373,291,971.65
  5. Step 5: Solve for x
    x = 160,373,291,971.65/457,800.31
  6. Step 6: Final answer
    x = 350,312.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.