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Finding the Fourth Proportional to 454,443, 627,135.72 and 250,501.77

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Solution

The fourth proportional to 454,443, 627,135.72 and 250,501.77 is: 345,694.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,443 : 627,135.72 = 250,501.77 : x
  2. Step 2: Convert to fraction form
    454,443/627,135.72 = 250,501.77/x
  3. Step 3: Cross multiply
    454,443x = 627,135.72 × 250,501.77
  4. Step 4: Simplify right side
    454,443x = 157,098,607,890.22
  5. Step 5: Solve for x
    x = 157,098,607,890.22/454,443
  6. Step 6: Final answer
    x = 345,694.86

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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.