Home / 227,839.20-312,134.52-219,320.40

Finding the Fourth Proportional to 227,839.20, 312,134.52 and 219,320.40

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Solution

The fourth proportional to 227,839.20, 312,134.52 and 219,320.40 is: 300,463.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,839.20 : 312,134.52 = 219,320.40 : x
  2. Step 2: Convert to fraction form
    227,839.20/312,134.52 = 219,320.40/x
  3. Step 3: Cross multiply
    227,839.20x = 312,134.52 × 219,320.40
  4. Step 4: Simplify right side
    227,839.20x = 68,457,467,780.21
  5. Step 5: Solve for x
    x = 68,457,467,780.21/227,839.20
  6. Step 6: Final answer
    x = 300,463.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.