Home / 255,087.43-352,023.85-140,379.28

Finding the Fourth Proportional to 255,087.43, 352,023.85 and 140,379.28

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Solution

The fourth proportional to 255,087.43, 352,023.85 and 140,379.28 is: 193,725.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,087.43 : 352,023.85 = 140,379.28 : x
  2. Step 2: Convert to fraction form
    255,087.43/352,023.85 = 140,379.28/x
  3. Step 3: Cross multiply
    255,087.43x = 352,023.85 × 140,379.28
  4. Step 4: Simplify right side
    255,087.43x = 49,416,853,506.43
  5. Step 5: Solve for x
    x = 49,416,853,506.43/255,087.43
  6. Step 6: Final answer
    x = 193,725.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.