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Finding the Fourth Proportional to 170,768.82, 256,098.54 and 80,799.30

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Solution

The fourth proportional to 170,768.82, 256,098.54 and 80,799.30 is: 121,173.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,768.82 : 256,098.54 = 80,799.30 : x
  2. Step 2: Convert to fraction form
    170,768.82/256,098.54 = 80,799.30/x
  3. Step 3: Cross multiply
    170,768.82x = 256,098.54 × 80,799.30
  4. Step 4: Simplify right side
    170,768.82x = 20,692,582,763.02
  5. Step 5: Solve for x
    x = 20,692,582,763.02/170,768.82
  6. Step 6: Final answer
    x = 121,173.07

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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.