Home / 438,302.26-657,472.15-172,120.37

Finding the Fourth Proportional to 438,302.26, 657,472.15 and 172,120.37

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Solution

The fourth proportional to 438,302.26, 657,472.15 and 172,120.37 is: 258,187.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,302.26 : 657,472.15 = 172,120.37 : x
  2. Step 2: Convert to fraction form
    438,302.26/657,472.15 = 172,120.37/x
  3. Step 3: Cross multiply
    438,302.26x = 657,472.15 × 172,120.37
  4. Step 4: Simplify right side
    438,302.26x = 113,164,349,722.70
  5. Step 5: Solve for x
    x = 113,164,349,722.70/438,302.26
  6. Step 6: Final answer
    x = 258,187.92

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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.