Home / 258,977.70-388,829.98-132,708.66

Finding the Fourth Proportional to 258,977.70, 388,829.98 and 132,708.66

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Solution

The fourth proportional to 258,977.70, 388,829.98 and 132,708.66 is: 199,249.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,977.70 : 388,829.98 = 132,708.66 : x
  2. Step 2: Convert to fraction form
    258,977.70/388,829.98 = 132,708.66/x
  3. Step 3: Cross multiply
    258,977.70x = 388,829.98 × 132,708.66
  4. Step 4: Simplify right side
    258,977.70x = 51,601,105,613.63
  5. Step 5: Solve for x
    x = 51,601,105,613.63/258,977.70
  6. Step 6: Final answer
    x = 199,249.22

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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.