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Finding the Fourth Proportional to 457,253.84, 631,010.18 and 253,318.01

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Solution

The fourth proportional to 457,253.84, 631,010.18 and 253,318.01 is: 349,578.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,253.84 : 631,010.18 = 253,318.01 : x
  2. Step 2: Convert to fraction form
    457,253.84/631,010.18 = 253,318.01/x
  3. Step 3: Cross multiply
    457,253.84x = 631,010.18 × 253,318.01
  4. Step 4: Simplify right side
    457,253.84x = 159,846,238,665.70
  5. Step 5: Solve for x
    x = 159,846,238,665.70/457,253.84
  6. Step 6: Final answer
    x = 349,578.78

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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.