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Finding the Fourth Proportional to 170,843.20, 256,264.80 and 161,657.80

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Solution

The fourth proportional to 170,843.20, 256,264.80 and 161,657.80 is: 242,486.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,843.20 : 256,264.80 = 161,657.80 : x
  2. Step 2: Convert to fraction form
    170,843.20/256,264.80 = 161,657.80/x
  3. Step 3: Cross multiply
    170,843.20x = 256,264.80 × 161,657.80
  4. Step 4: Simplify right side
    170,843.20x = 41,427,203,785.44
  5. Step 5: Solve for x
    x = 41,427,203,785.44/170,843.20
  6. Step 6: Final answer
    x = 242,486.70

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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.