Home / 381,867.87-572,875.56-145,192.15

Finding the Fourth Proportional to 381,867.87, 572,875.56 and 145,192.15

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Solution

The fourth proportional to 381,867.87, 572,875.56 and 145,192.15 is: 217,816.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,867.87 : 572,875.56 = 145,192.15 : x
  2. Step 2: Convert to fraction form
    381,867.87/572,875.56 = 145,192.15/x
  3. Step 3: Cross multiply
    381,867.87x = 572,875.56 × 145,192.15
  4. Step 4: Simplify right side
    381,867.87x = 83,177,034,238.85
  5. Step 5: Solve for x
    x = 83,177,034,238.85/381,867.87
  6. Step 6: Final answer
    x = 217,816.27

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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.