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Finding the Fourth Proportional to 387,041.76, 534,152.88 and 225,974.88

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Solution

The fourth proportional to 387,041.76, 534,152.88 and 225,974.88 is: 311,865.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,041.76 : 534,152.88 = 225,974.88 : x
  2. Step 2: Convert to fraction form
    387,041.76/534,152.88 = 225,974.88/x
  3. Step 3: Cross multiply
    387,041.76x = 534,152.88 × 225,974.88
  4. Step 4: Simplify right side
    387,041.76x = 120,705,132,959.65
  5. Step 5: Solve for x
    x = 120,705,132,959.65/387,041.76
  6. Step 6: Final answer
    x = 311,865.92

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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.