Home / 476,980.20-715,470.30-161,432.55

Finding the Fourth Proportional to 476,980.20, 715,470.30 and 161,432.55

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Solution

The fourth proportional to 476,980.20, 715,470.30 and 161,432.55 is: 242,148.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,980.20 : 715,470.30 = 161,432.55 : x
  2. Step 2: Convert to fraction form
    476,980.20/715,470.30 = 161,432.55/x
  3. Step 3: Cross multiply
    476,980.20x = 715,470.30 × 161,432.55
  4. Step 4: Simplify right side
    476,980.20x = 115,500,194,978.27
  5. Step 5: Solve for x
    x = 115,500,194,978.27/476,980.20
  6. Step 6: Final answer
    x = 242,148.83

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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.