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Finding the Fourth Proportional to 457,424.40, 631,245.96 and 250,691.88

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Solution

The fourth proportional to 457,424.40, 631,245.96 and 250,691.88 is: 345,954.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,424.40 : 631,245.96 = 250,691.88 : x
  2. Step 2: Convert to fraction form
    457,424.40/631,245.96 = 250,691.88/x
  3. Step 3: Cross multiply
    457,424.40x = 631,245.96 × 250,691.88
  4. Step 4: Simplify right side
    457,424.40x = 158,248,236,454.81
  5. Step 5: Solve for x
    x = 158,248,236,454.81/457,424.40
  6. Step 6: Final answer
    x = 345,954.95

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1.5x scale

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.