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Finding the Fourth Proportional to 475,454.28, 656,118.45 and 281,992.26

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Solution

The fourth proportional to 475,454.28, 656,118.45 and 281,992.26 is: 389,144.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,454.28 : 656,118.45 = 281,992.26 : x
  2. Step 2: Convert to fraction form
    475,454.28/656,118.45 = 281,992.26/x
  3. Step 3: Cross multiply
    475,454.28x = 656,118.45 × 281,992.26
  4. Step 4: Simplify right side
    475,454.28x = 185,020,324,543.20
  5. Step 5: Solve for x
    x = 185,020,324,543.20/475,454.28
  6. Step 6: Final answer
    x = 389,144.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.