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Finding the Fourth Proportional to 276,241.88, 414,334.72 and 86,703.70

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Solution

The fourth proportional to 276,241.88, 414,334.72 and 86,703.70 is: 130,046.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,241.88 : 414,334.72 = 86,703.70 : x
  2. Step 2: Convert to fraction form
    276,241.88/414,334.72 = 86,703.70/x
  3. Step 3: Cross multiply
    276,241.88x = 414,334.72 × 86,703.70
  4. Step 4: Simplify right side
    276,241.88x = 35,924,353,262.46
  5. Step 5: Solve for x
    x = 35,924,353,262.46/276,241.88
  6. Step 6: Final answer
    x = 130,046.73

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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.