Home / 438,264.52-657,769.80-172,211.08

Finding the Fourth Proportional to 438,264.52, 657,769.80 and 172,211.08

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Solution

The fourth proportional to 438,264.52, 657,769.80 and 172,211.08 is: 258,463.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,264.52 : 657,769.80 = 172,211.08 : x
  2. Step 2: Convert to fraction form
    438,264.52/657,769.80 = 172,211.08/x
  3. Step 3: Cross multiply
    438,264.52x = 657,769.80 × 172,211.08
  4. Step 4: Simplify right side
    438,264.52x = 113,275,247,649.38
  5. Step 5: Solve for x
    x = 113,275,247,649.38/438,264.52
  6. Step 6: Final answer
    x = 258,463.19

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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.