Home / 425,622.38-638,367.95-141,436.31

Finding the Fourth Proportional to 425,622.38, 638,367.95 and 141,436.31

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Solution

The fourth proportional to 425,622.38, 638,367.95 and 141,436.31 is: 212,132.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,622.38 : 638,367.95 = 141,436.31 : x
  2. Step 2: Convert to fraction form
    425,622.38/638,367.95 = 141,436.31/x
  3. Step 3: Cross multiply
    425,622.38x = 638,367.95 × 141,436.31
  4. Step 4: Simplify right side
    425,622.38x = 90,288,404,432.02
  5. Step 5: Solve for x
    x = 90,288,404,432.02/425,622.38
  6. Step 6: Final answer
    x = 212,132.65

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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.