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Finding the Fourth Proportional to 318,995.97, 478,493.96 and 94,338.91

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Solution

The fourth proportional to 318,995.97, 478,493.96 and 94,338.91 is: 141,508.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,995.97 : 478,493.96 = 94,338.91 : x
  2. Step 2: Convert to fraction form
    318,995.97/478,493.96 = 94,338.91/x
  3. Step 3: Cross multiply
    318,995.97x = 478,493.96 × 94,338.91
  4. Step 4: Simplify right side
    318,995.97x = 45,140,601,331.50
  5. Step 5: Solve for x
    x = 45,140,601,331.50/318,995.97
  6. Step 6: Final answer
    x = 141,508.38

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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.