Home / 381,868.37-572,876.31-145,192.65

Finding the Fourth Proportional to 381,868.37, 572,876.31 and 145,192.65

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Solution

The fourth proportional to 381,868.37, 572,876.31 and 145,192.65 is: 217,817.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,868.37 : 572,876.31 = 145,192.65 : x
  2. Step 2: Convert to fraction form
    381,868.37/572,876.31 = 145,192.65/x
  3. Step 3: Cross multiply
    381,868.37x = 572,876.31 × 145,192.65
  4. Step 4: Simplify right side
    381,868.37x = 83,177,429,571.12
  5. Step 5: Solve for x
    x = 83,177,429,571.12/381,868.37
  6. Step 6: Final answer
    x = 217,817.02

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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.