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Finding the Fourth Proportional to 155,280.60, 232,920.90 and 137,565.90

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Solution

The fourth proportional to 155,280.60, 232,920.90 and 137,565.90 is: 206,348.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,280.60 : 232,920.90 = 137,565.90 : x
  2. Step 2: Convert to fraction form
    155,280.60/232,920.90 = 137,565.90/x
  3. Step 3: Cross multiply
    155,280.60x = 232,920.90 × 137,565.90
  4. Step 4: Simplify right side
    155,280.60x = 32,041,973,237.31
  5. Step 5: Solve for x
    x = 32,041,973,237.31/155,280.60
  6. Step 6: Final answer
    x = 206,348.85

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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.