Home / 258,980.19-388,833.75-132,711.18

Finding the Fourth Proportional to 258,980.19, 388,833.75 and 132,711.18

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Solution

The fourth proportional to 258,980.19, 388,833.75 and 132,711.18 is: 199,253.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,980.19 : 388,833.75 = 132,711.18 : x
  2. Step 2: Convert to fraction form
    258,980.19/388,833.75 = 132,711.18/x
  3. Step 3: Cross multiply
    258,980.19x = 388,833.75 × 132,711.18
  4. Step 4: Simplify right side
    258,980.19x = 51,602,585,786.33
  5. Step 5: Solve for x
    x = 51,602,585,786.33/258,980.19
  6. Step 6: Final answer
    x = 199,253.02

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1.5x scale

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.