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Finding the Fourth Proportional to 239,241.56, 358,870.80 and 126,769.88

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Solution

The fourth proportional to 239,241.56, 358,870.80 and 126,769.88 is: 190,159.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,241.56 : 358,870.80 = 126,769.88 : x
  2. Step 2: Convert to fraction form
    239,241.56/358,870.80 = 126,769.88/x
  3. Step 3: Cross multiply
    239,241.56x = 358,870.80 × 126,769.88
  4. Step 4: Simplify right side
    239,241.56x = 45,494,008,251.50
  5. Step 5: Solve for x
    x = 45,494,008,251.50/239,241.56
  6. Step 6: Final answer
    x = 190,159.30

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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.