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Finding the Fourth Proportional to 230,995.50, 318,773.81 and 125,011.50

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Solution

The fourth proportional to 230,995.50, 318,773.81 and 125,011.50 is: 172,515.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,995.50 : 318,773.81 = 125,011.50 : x
  2. Step 2: Convert to fraction form
    230,995.50/318,773.81 = 125,011.50/x
  3. Step 3: Cross multiply
    230,995.50x = 318,773.81 × 125,011.50
  4. Step 4: Simplify right side
    230,995.50x = 39,850,392,148.82
  5. Step 5: Solve for x
    x = 39,850,392,148.82/230,995.50
  6. Step 6: Final answer
    x = 172,515.88

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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.