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Finding the Fourth Proportional to 297,073.64, 445,727.16 and 130,745

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Solution

The fourth proportional to 297,073.64, 445,727.16 and 130,745 is: 196,168.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,073.64 : 445,727.16 = 130,745 : x
  2. Step 2: Convert to fraction form
    297,073.64/445,727.16 = 130,745/x
  3. Step 3: Cross multiply
    297,073.64x = 445,727.16 × 130,745
  4. Step 4: Simplify right side
    297,073.64x = 58,276,597,534.20
  5. Step 5: Solve for x
    x = 58,276,597,534.20/297,073.64
  6. Step 6: Final answer
    x = 196,168.86

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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.