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Finding the Fourth Proportional to 457,425.31, 631,250.63 and 253,479.64

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Solution

The fourth proportional to 457,425.31, 631,250.63 and 253,479.64 is: 349,803.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,425.31 : 631,250.63 = 253,479.64 : x
  2. Step 2: Convert to fraction form
    457,425.31/631,250.63 = 253,479.64/x
  3. Step 3: Cross multiply
    457,425.31x = 631,250.63 × 253,479.64
  4. Step 4: Simplify right side
    457,425.31x = 160,009,181,182.01
  5. Step 5: Solve for x
    x = 160,009,181,182.01/457,425.31
  6. Step 6: Final answer
    x = 349,803.95

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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.