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Finding the Fourth Proportional to 170,479.42, 255,663.80 and 80,508.22

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Solution

The fourth proportional to 170,479.42, 255,663.80 and 80,508.22 is: 120,736.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,479.42 : 255,663.80 = 80,508.22 : x
  2. Step 2: Convert to fraction form
    170,479.42/255,663.80 = 80,508.22/x
  3. Step 3: Cross multiply
    170,479.42x = 255,663.80 × 80,508.22
  4. Step 4: Simplify right side
    170,479.42x = 20,583,037,456.44
  5. Step 5: Solve for x
    x = 20,583,037,456.44/170,479.42
  6. Step 6: Final answer
    x = 120,736.20

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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.