Home / 256,894.09-354,279.66-220,584.19

Finding the Fourth Proportional to 256,894.09, 354,279.66 and 220,584.19

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Solution

The fourth proportional to 256,894.09, 354,279.66 and 220,584.19 is: 304,205.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,894.09 : 354,279.66 = 220,584.19 : x
  2. Step 2: Convert to fraction form
    256,894.09/354,279.66 = 220,584.19/x
  3. Step 3: Cross multiply
    256,894.09x = 354,279.66 × 220,584.19
  4. Step 4: Simplify right side
    256,894.09x = 78,148,491,834.58
  5. Step 5: Solve for x
    x = 78,148,491,834.58/256,894.09
  6. Step 6: Final answer
    x = 304,205.10

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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.