Home / 259,022.40-387,816.18-132,389.96

Finding the Fourth Proportional to 259,022.40, 387,816.18 and 132,389.96

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Solution

The fourth proportional to 259,022.40, 387,816.18 and 132,389.96 is: 198,218.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,022.40 : 387,816.18 = 132,389.96 : x
  2. Step 2: Convert to fraction form
    259,022.40/387,816.18 = 132,389.96/x
  3. Step 3: Cross multiply
    259,022.40x = 387,816.18 × 132,389.96
  4. Step 4: Simplify right side
    259,022.40x = 51,342,968,557.55
  5. Step 5: Solve for x
    x = 51,342,968,557.55/259,022.40
  6. Step 6: Final answer
    x = 198,218.26

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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.