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Finding the Fourth Proportional to 259,556.76, 389,148.22 and 159,510.28

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Solution

The fourth proportional to 259,556.76, 389,148.22 and 159,510.28 is: 239,150.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,556.76 : 389,148.22 = 159,510.28 : x
  2. Step 2: Convert to fraction form
    259,556.76/389,148.22 = 159,510.28/x
  3. Step 3: Cross multiply
    259,556.76x = 389,148.22 × 159,510.28
  4. Step 4: Simplify right side
    259,556.76x = 62,073,141,533.70
  5. Step 5: Solve for x
    x = 62,073,141,533.70/259,556.76
  6. Step 6: Final answer
    x = 239,150.55

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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.