Home / 258,523.38-387,782.17-100,862.55

Finding the Fourth Proportional to 258,523.38, 387,782.17 and 100,862.55

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Solution

The fourth proportional to 258,523.38, 387,782.17 and 100,862.55 is: 151,292.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,523.38 : 387,782.17 = 100,862.55 : x
  2. Step 2: Convert to fraction form
    258,523.38/387,782.17 = 100,862.55/x
  3. Step 3: Cross multiply
    258,523.38x = 387,782.17 × 100,862.55
  4. Step 4: Simplify right side
    258,523.38x = 39,112,698,258.58
  5. Step 5: Solve for x
    x = 39,112,698,258.58/258,523.38
  6. Step 6: Final answer
    x = 151,292.69

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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.