Home / 477,613.20-715,458.12-221,084.18

Finding the Fourth Proportional to 477,613.20, 715,458.12 and 221,084.18

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Solution

The fourth proportional to 477,613.20, 715,458.12 and 221,084.18 is: 331,181.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,613.20 : 715,458.12 = 221,084.18 : x
  2. Step 2: Convert to fraction form
    477,613.20/715,458.12 = 221,084.18/x
  3. Step 3: Cross multiply
    477,613.20x = 715,458.12 × 221,084.18
  4. Step 4: Simplify right side
    477,613.20x = 158,176,471,784.54
  5. Step 5: Solve for x
    x = 158,176,471,784.54/477,613.20
  6. Step 6: Final answer
    x = 331,181.11

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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.