Home / 301,279.11-415,780.20-172,224.24

Finding the Fourth Proportional to 301,279.11, 415,780.20 and 172,224.24

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Solution

The fourth proportional to 301,279.11, 415,780.20 and 172,224.24 is: 237,678.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,279.11 : 415,780.20 = 172,224.24 : x
  2. Step 2: Convert to fraction form
    301,279.11/415,780.20 = 172,224.24/x
  3. Step 3: Cross multiply
    301,279.11x = 415,780.20 × 172,224.24
  4. Step 4: Simplify right side
    301,279.11x = 71,607,428,952.05
  5. Step 5: Solve for x
    x = 71,607,428,952.05/301,279.11
  6. Step 6: Final answer
    x = 237,678.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.