Home / 255,432.91-352,508.35-142,255.66

Finding the Fourth Proportional to 255,432.91, 352,508.35 and 142,255.66

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Solution

The fourth proportional to 255,432.91, 352,508.35 and 142,255.66 is: 196,318.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,432.91 : 352,508.35 = 142,255.66 : x
  2. Step 2: Convert to fraction form
    255,432.91/352,508.35 = 142,255.66/x
  3. Step 3: Cross multiply
    255,432.91x = 352,508.35 × 142,255.66
  4. Step 4: Simplify right side
    255,432.91x = 50,146,306,747.85
  5. Step 5: Solve for x
    x = 50,146,306,747.85/255,432.91
  6. Step 6: Final answer
    x = 196,318.90

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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.