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Finding the Fourth Proportional to 259,373.31, 388,949.80 and 101,576.67

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Solution

The fourth proportional to 259,373.31, 388,949.80 and 101,576.67 is: 152,321.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,373.31 : 388,949.80 = 101,576.67 : x
  2. Step 2: Convert to fraction form
    259,373.31/388,949.80 = 101,576.67/x
  3. Step 3: Cross multiply
    259,373.31x = 388,949.80 × 101,576.67
  4. Step 4: Simplify right side
    259,373.31x = 39,508,225,481.17
  5. Step 5: Solve for x
    x = 39,508,225,481.17/259,373.31
  6. Step 6: Final answer
    x = 152,321.86

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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.