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Finding the Fourth Proportional to 352,524.38, 486,013.84 and 280,168.85

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Solution

The fourth proportional to 352,524.38, 486,013.84 and 280,168.85 is: 386,259.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,524.38 : 486,013.84 = 280,168.85 : x
  2. Step 2: Convert to fraction form
    352,524.38/486,013.84 = 280,168.85/x
  3. Step 3: Cross multiply
    352,524.38x = 486,013.84 × 280,168.85
  4. Step 4: Simplify right side
    352,524.38x = 136,165,939,151.50
  5. Step 5: Solve for x
    x = 136,165,939,151.50/352,524.38
  6. Step 6: Final answer
    x = 386,259.64

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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.