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Finding the Fourth Proportional to 408,182.40, 612,279.90 and 155,476.98

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Solution

The fourth proportional to 408,182.40, 612,279.90 and 155,476.98 is: 233,217.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,182.40 : 612,279.90 = 155,476.98 : x
  2. Step 2: Convert to fraction form
    408,182.40/612,279.90 = 155,476.98/x
  3. Step 3: Cross multiply
    408,182.40x = 612,279.90 × 155,476.98
  4. Step 4: Simplify right side
    408,182.40x = 95,195,429,766.70
  5. Step 5: Solve for x
    x = 95,195,429,766.70/408,182.40
  6. Step 6: Final answer
    x = 233,217.87

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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.