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Finding the Fourth Proportional to 356,253.20, 491,640.60 and 195,123.68

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Solution

The fourth proportional to 356,253.20, 491,640.60 and 195,123.68 is: 269,276.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,253.20 : 491,640.60 = 195,123.68 : x
  2. Step 2: Convert to fraction form
    356,253.20/491,640.60 = 195,123.68/x
  3. Step 3: Cross multiply
    356,253.20x = 491,640.60 × 195,123.68
  4. Step 4: Simplify right side
    356,253.20x = 95,930,723,109.41
  5. Step 5: Solve for x
    x = 95,930,723,109.41/356,253.20
  6. Step 6: Final answer
    x = 269,276.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.