Home / 255,135.20-382,789.28-112,960.86

Finding the Fourth Proportional to 255,135.20, 382,789.28 and 112,960.86

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Solution

The fourth proportional to 255,135.20, 382,789.28 and 112,960.86 is: 169,479.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,135.20 : 382,789.28 = 112,960.86 : x
  2. Step 2: Convert to fraction form
    255,135.20/382,789.28 = 112,960.86/x
  3. Step 3: Cross multiply
    255,135.20x = 382,789.28 × 112,960.86
  4. Step 4: Simplify right side
    255,135.20x = 43,240,205,702.78
  5. Step 5: Solve for x
    x = 43,240,205,702.78/255,135.20
  6. Step 6: Final answer
    x = 169,479.58

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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.