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Finding the Fourth Proportional to 381,435.37, 572,174.97 and 138,329.37

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Solution

The fourth proportional to 381,435.37, 572,174.97 and 138,329.37 is: 207,502.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,435.37 : 572,174.97 = 138,329.37 : x
  2. Step 2: Convert to fraction form
    381,435.37/572,174.97 = 138,329.37/x
  3. Step 3: Cross multiply
    381,435.37x = 572,174.97 × 138,329.37
  4. Step 4: Simplify right side
    381,435.37x = 79,148,600,391.80
  5. Step 5: Solve for x
    x = 79,148,600,391.80/381,435.37
  6. Step 6: Final answer
    x = 207,502.00

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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.