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Finding the Fourth Proportional to 359,481.92, 496,081.76 and 198,338.40

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Solution

The fourth proportional to 359,481.92, 496,081.76 and 198,338.40 is: 273,705.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,481.92 : 496,081.76 = 198,338.40 : x
  2. Step 2: Convert to fraction form
    359,481.92/496,081.76 = 198,338.40/x
  3. Step 3: Cross multiply
    359,481.92x = 496,081.76 × 198,338.40
  4. Step 4: Simplify right side
    359,481.92x = 98,392,062,547.58
  5. Step 5: Solve for x
    x = 98,392,062,547.58/359,481.92
  6. Step 6: Final answer
    x = 273,705.18

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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.