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Finding the Fourth Proportional to 625,436.84, 938,155.26 and 152,122.52

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Solution

The fourth proportional to 625,436.84, 938,155.26 and 152,122.52 is: 228,183.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,436.84 : 938,155.26 = 152,122.52 : x
  2. Step 2: Convert to fraction form
    625,436.84/938,155.26 = 152,122.52/x
  3. Step 3: Cross multiply
    625,436.84x = 938,155.26 × 152,122.52
  4. Step 4: Simplify right side
    625,436.84x = 142,714,542,302.46
  5. Step 5: Solve for x
    x = 142,714,542,302.46/625,436.84
  6. Step 6: Final answer
    x = 228,183.78

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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.