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Finding the Fourth Proportional to 229,219.20, 316,306.64 and 127,236.64

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Solution

The fourth proportional to 229,219.20, 316,306.64 and 127,236.64 is: 175,577.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,219.20 : 316,306.64 = 127,236.64 : x
  2. Step 2: Convert to fraction form
    229,219.20/316,306.64 = 127,236.64/x
  3. Step 3: Cross multiply
    229,219.20x = 316,306.64 × 127,236.64
  4. Step 4: Simplify right side
    229,219.20x = 40,245,794,083.29
  5. Step 5: Solve for x
    x = 40,245,794,083.29/229,219.20
  6. Step 6: Final answer
    x = 175,577.76

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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.