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Finding the Fourth Proportional to 391,119.92, 586,585.92 and 180,555.56

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Solution

The fourth proportional to 391,119.92, 586,585.92 and 180,555.56 is: 270,789.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,119.92 : 586,585.92 = 180,555.56 : x
  2. Step 2: Convert to fraction form
    391,119.92/586,585.92 = 180,555.56/x
  3. Step 3: Cross multiply
    391,119.92x = 586,585.92 × 180,555.56
  4. Step 4: Simplify right side
    391,119.92x = 105,911,349,273.72
  5. Step 5: Solve for x
    x = 105,911,349,273.72/391,119.92
  6. Step 6: Final answer
    x = 270,789.96

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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.