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Finding the Fourth Proportional to 457,358.40, 631,154.88 and 250,625.88

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Solution

The fourth proportional to 457,358.40, 631,154.88 and 250,625.88 is: 345,863.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,358.40 : 631,154.88 = 250,625.88 : x
  2. Step 2: Convert to fraction form
    457,358.40/631,154.88 = 250,625.88/x
  3. Step 3: Cross multiply
    457,358.40x = 631,154.88 × 250,625.88
  4. Step 4: Simplify right side
    457,358.40x = 158,183,747,216.29
  5. Step 5: Solve for x
    x = 158,183,747,216.29/457,358.40
  6. Step 6: Final answer
    x = 345,863.87

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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.