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Finding the Fourth Proportional to 297,979.46, 446,959.32 and 129,499.97

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Solution

The fourth proportional to 297,979.46, 446,959.32 and 129,499.97 is: 194,245.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,979.46 : 446,959.32 = 129,499.97 : x
  2. Step 2: Convert to fraction form
    297,979.46/446,959.32 = 129,499.97/x
  3. Step 3: Cross multiply
    297,979.46x = 446,959.32 × 129,499.97
  4. Step 4: Simplify right side
    297,979.46x = 57,881,215,810.80
  5. Step 5: Solve for x
    x = 57,881,215,810.80/297,979.46
  6. Step 6: Final answer
    x = 194,245.66

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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.