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Finding the Fourth Proportional to 457,404.02, 631,208.11 and 253,453.15

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Solution

The fourth proportional to 457,404.02, 631,208.11 and 253,453.15 is: 349,760.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,404.02 : 631,208.11 = 253,453.15 : x
  2. Step 2: Convert to fraction form
    457,404.02/631,208.11 = 253,453.15/x
  3. Step 3: Cross multiply
    457,404.02x = 631,208.11 × 253,453.15
  4. Step 4: Simplify right side
    457,404.02x = 159,981,679,361.74
  5. Step 5: Solve for x
    x = 159,981,679,361.74/457,404.02
  6. Step 6: Final answer
    x = 349,760.11

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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.