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Finding the Fourth Proportional to 180,511.95, 270,866.30 and 80,668.11

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Solution

The fourth proportional to 180,511.95, 270,866.30 and 80,668.11 is: 121,046.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,511.95 : 270,866.30 = 80,668.11 : x
  2. Step 2: Convert to fraction form
    180,511.95/270,866.30 = 80,668.11/x
  3. Step 3: Cross multiply
    180,511.95x = 270,866.30 × 80,668.11
  4. Step 4: Simplify right side
    180,511.95x = 21,850,272,080.35
  5. Step 5: Solve for x
    x = 21,850,272,080.35/180,511.95
  6. Step 6: Final answer
    x = 121,046.13

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1.5x scale

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.