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Finding the Fourth Proportional to 387,152.29, 580,728.43 and 150,550.32

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Solution

The fourth proportional to 387,152.29, 580,728.43 and 150,550.32 is: 225,825.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,152.29 : 580,728.43 = 150,550.32 : x
  2. Step 2: Convert to fraction form
    387,152.29/580,728.43 = 150,550.32/x
  3. Step 3: Cross multiply
    387,152.29x = 580,728.43 × 150,550.32
  4. Step 4: Simplify right side
    387,152.29x = 87,428,853,335.52
  5. Step 5: Solve for x
    x = 87,428,853,335.52/387,152.29
  6. Step 6: Final answer
    x = 225,825.49

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Similar ratio
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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.