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Finding the Fourth Proportional to 397,190.80, 595,397.40 and 160,217.20

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Solution

The fourth proportional to 397,190.80, 595,397.40 and 160,217.20 is: 240,168.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,190.80 : 595,397.40 = 160,217.20 : x
  2. Step 2: Convert to fraction form
    397,190.80/595,397.40 = 160,217.20/x
  3. Step 3: Cross multiply
    397,190.80x = 595,397.40 × 160,217.20
  4. Step 4: Simplify right side
    397,190.80x = 95,392,904,315.28
  5. Step 5: Solve for x
    x = 95,392,904,315.28/397,190.80
  6. Step 6: Final answer
    x = 240,168.97

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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.