Home / 258,574.25-388,224.66-132,305.04

Finding the Fourth Proportional to 258,574.25, 388,224.66 and 132,305.04

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Solution

The fourth proportional to 258,574.25, 388,224.66 and 132,305.04 is: 198,643.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,574.25 : 388,224.66 = 132,305.04 : x
  2. Step 2: Convert to fraction form
    258,574.25/388,224.66 = 132,305.04/x
  3. Step 3: Cross multiply
    258,574.25x = 388,224.66 × 132,305.04
  4. Step 4: Simplify right side
    258,574.25x = 51,364,079,170.29
  5. Step 5: Solve for x
    x = 51,364,079,170.29/258,574.25
  6. Step 6: Final answer
    x = 198,643.45

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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.