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Finding the Fourth Proportional to 297,049.02, 445,690.17 and 130,720.38

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Solution

The fourth proportional to 297,049.02, 445,690.17 and 130,720.38 is: 196,131.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,049.02 : 445,690.17 = 130,720.38 : x
  2. Step 2: Convert to fraction form
    297,049.02/445,690.17 = 130,720.38/x
  3. Step 3: Cross multiply
    297,049.02x = 445,690.17 × 130,720.38
  4. Step 4: Simplify right side
    297,049.02x = 58,260,785,502.61
  5. Step 5: Solve for x
    x = 58,260,785,502.61/297,049.02
  6. Step 6: Final answer
    x = 196,131.89

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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.