Home / 259,629.04-389,304.24-133,217.20

Finding the Fourth Proportional to 259,629.04, 389,304.24 and 133,217.20

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Solution

The fourth proportional to 259,629.04, 389,304.24 and 133,217.20 is: 199,754.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,629.04 : 389,304.24 = 133,217.20 : x
  2. Step 2: Convert to fraction form
    259,629.04/389,304.24 = 133,217.20/x
  3. Step 3: Cross multiply
    259,629.04x = 389,304.24 × 133,217.20
  4. Step 4: Simplify right side
    259,629.04x = 51,862,020,800.93
  5. Step 5: Solve for x
    x = 51,862,020,800.93/259,629.04
  6. Step 6: Final answer
    x = 199,754.31

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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.