Home / 381,722.55-572,406.09-141,669.26

Finding the Fourth Proportional to 381,722.55, 572,406.09 and 141,669.26

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Solution

The fourth proportional to 381,722.55, 572,406.09 and 141,669.26 is: 212,437.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,722.55 : 572,406.09 = 141,669.26 : x
  2. Step 2: Convert to fraction form
    381,722.55/572,406.09 = 141,669.26/x
  3. Step 3: Cross multiply
    381,722.55x = 572,406.09 × 141,669.26
  4. Step 4: Simplify right side
    381,722.55x = 81,092,347,189.79
  5. Step 5: Solve for x
    x = 81,092,347,189.79/381,722.55
  6. Step 6: Final answer
    x = 212,437.93

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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.