Home / 343,279.72-514,849.13-129,974.22

Finding the Fourth Proportional to 343,279.72, 514,849.13 and 129,974.22

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Solution

The fourth proportional to 343,279.72, 514,849.13 and 129,974.22 is: 194,934.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,279.72 : 514,849.13 = 129,974.22 : x
  2. Step 2: Convert to fraction form
    343,279.72/514,849.13 = 129,974.22/x
  3. Step 3: Cross multiply
    343,279.72x = 514,849.13 × 129,974.22
  4. Step 4: Simplify right side
    343,279.72x = 66,917,113,926.96
  5. Step 5: Solve for x
    x = 66,917,113,926.96/343,279.72
  6. Step 6: Final answer
    x = 194,934.65

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1.5x scale

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.