Home / 418,630.20-628,091.10-182,142.60

Finding the Fourth Proportional to 418,630.20, 628,091.10 and 182,142.60

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Solution

The fourth proportional to 418,630.20, 628,091.10 and 182,142.60 is: 273,277.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,630.20 : 628,091.10 = 182,142.60 : x
  2. Step 2: Convert to fraction form
    418,630.20/628,091.10 = 182,142.60/x
  3. Step 3: Cross multiply
    418,630.20x = 628,091.10 × 182,142.60
  4. Step 4: Simplify right side
    418,630.20x = 114,402,145,990.86
  5. Step 5: Solve for x
    x = 114,402,145,990.86/418,630.20
  6. Step 6: Final answer
    x = 273,277.34

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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.