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Finding the Fourth Proportional to 320,691.57, 481,000.50 and 84,052.91

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Solution

The fourth proportional to 320,691.57, 481,000.50 and 84,052.91 is: 126,069.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,691.57 : 481,000.50 = 84,052.91 : x
  2. Step 2: Convert to fraction form
    320,691.57/481,000.50 = 84,052.91/x
  3. Step 3: Cross multiply
    320,691.57x = 481,000.50 × 84,052.91
  4. Step 4: Simplify right side
    320,691.57x = 40,429,489,331.45
  5. Step 5: Solve for x
    x = 40,429,489,331.45/320,691.57
  6. Step 6: Final answer
    x = 126,069.70

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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.