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Finding the Fourth Proportional to 425,519.97, 638,296.15 and 159,252.45

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Solution

The fourth proportional to 425,519.97, 638,296.15 and 159,252.45 is: 238,884.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,519.97 : 638,296.15 = 159,252.45 : x
  2. Step 2: Convert to fraction form
    425,519.97/638,296.15 = 159,252.45/x
  3. Step 3: Cross multiply
    425,519.97x = 638,296.15 × 159,252.45
  4. Step 4: Simplify right side
    425,519.97x = 101,650,222,521.59
  5. Step 5: Solve for x
    x = 101,650,222,521.59/425,519.97
  6. Step 6: Final answer
    x = 238,884.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.