Home / 256,498.39-384,766.92-76,569.61

Finding the Fourth Proportional to 256,498.39, 384,766.92 and 76,569.61

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Solution

The fourth proportional to 256,498.39, 384,766.92 and 76,569.61 is: 114,860.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,498.39 : 384,766.92 = 76,569.61 : x
  2. Step 2: Convert to fraction form
    256,498.39/384,766.92 = 76,569.61/x
  3. Step 3: Cross multiply
    256,498.39x = 384,766.92 × 76,569.61
  4. Step 4: Simplify right side
    256,498.39x = 29,461,453,005.30
  5. Step 5: Solve for x
    x = 29,461,453,005.30/256,498.39
  6. Step 6: Final answer
    x = 114,860.19

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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.