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Finding the Fourth Proportional to 259,754.54, 389,654.01 and 91,260.23

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Solution

The fourth proportional to 259,754.54, 389,654.01 and 91,260.23 is: 136,898.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,754.54 : 389,654.01 = 91,260.23 : x
  2. Step 2: Convert to fraction form
    259,754.54/389,654.01 = 91,260.23/x
  3. Step 3: Cross multiply
    259,754.54x = 389,654.01 × 91,260.23
  4. Step 4: Simplify right side
    259,754.54x = 35,559,912,624.75
  5. Step 5: Solve for x
    x = 35,559,912,624.75/259,754.54
  6. Step 6: Final answer
    x = 136,898.14

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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.