Home / 399,546.46-551,390.88-229,780.72

Finding the Fourth Proportional to 399,546.46, 551,390.88 and 229,780.72

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Solution

The fourth proportional to 399,546.46, 551,390.88 and 229,780.72 is: 317,107.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,546.46 : 551,390.88 = 229,780.72 : x
  2. Step 2: Convert to fraction form
    399,546.46/551,390.88 = 229,780.72/x
  3. Step 3: Cross multiply
    399,546.46x = 551,390.88 × 229,780.72
  4. Step 4: Simplify right side
    399,546.46x = 126,698,994,211.86
  5. Step 5: Solve for x
    x = 126,698,994,211.86/399,546.46
  6. Step 6: Final answer
    x = 317,107.04

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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.