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Finding the Fourth Proportional to 223,410.10, 335,115.15 and 83,139.70

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Solution

The fourth proportional to 223,410.10, 335,115.15 and 83,139.70 is: 124,709.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,410.10 : 335,115.15 = 83,139.70 : x
  2. Step 2: Convert to fraction form
    223,410.10/335,115.15 = 83,139.70/x
  3. Step 3: Cross multiply
    223,410.10x = 335,115.15 × 83,139.70
  4. Step 4: Simplify right side
    223,410.10x = 27,861,373,036.46
  5. Step 5: Solve for x
    x = 27,861,373,036.46/223,410.10
  6. Step 6: Final answer
    x = 124,709.55

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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.