Home / 358,306.38-494,209.89-243,517.65

Finding the Fourth Proportional to 358,306.38, 494,209.89 and 243,517.65

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Solution

The fourth proportional to 358,306.38, 494,209.89 and 243,517.65 is: 335,882.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,306.38 : 494,209.89 = 243,517.65 : x
  2. Step 2: Convert to fraction form
    358,306.38/494,209.89 = 243,517.65/x
  3. Step 3: Cross multiply
    358,306.38x = 494,209.89 × 243,517.65
  4. Step 4: Simplify right side
    358,306.38x = 120,348,831,019.56
  5. Step 5: Solve for x
    x = 120,348,831,019.56/358,306.38
  6. Step 6: Final answer
    x = 335,882.47

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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.