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Finding the Fourth Proportional to 332,426.70, 498,640.05 and 155,279.70

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Solution

The fourth proportional to 332,426.70, 498,640.05 and 155,279.70 is: 232,919.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,426.70 : 498,640.05 = 155,279.70 : x
  2. Step 2: Convert to fraction form
    332,426.70/498,640.05 = 155,279.70/x
  3. Step 3: Cross multiply
    332,426.70x = 498,640.05 × 155,279.70
  4. Step 4: Simplify right side
    332,426.70x = 77,428,677,371.99
  5. Step 5: Solve for x
    x = 77,428,677,371.99/332,426.70
  6. Step 6: Final answer
    x = 232,919.55

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Similar ratio
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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.