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Finding the Fourth Proportional to 320,229.44, 480,369.12 and 187,123.52

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Solution

The fourth proportional to 320,229.44, 480,369.12 and 187,123.52 is: 280,699.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,229.44 : 480,369.12 = 187,123.52 : x
  2. Step 2: Convert to fraction form
    320,229.44/480,369.12 = 187,123.52/x
  3. Step 3: Cross multiply
    320,229.44x = 480,369.12 × 187,123.52
  4. Step 4: Simplify right side
    320,229.44x = 89,888,360,633.70
  5. Step 5: Solve for x
    x = 89,888,360,633.70/320,229.44
  6. Step 6: Final answer
    x = 280,699.87

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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.