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Finding the Fourth Proportional to 170,734.40, 256,101.60 and 65,555.90

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Solution

The fourth proportional to 170,734.40, 256,101.60 and 65,555.90 is: 98,333.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,734.40 : 256,101.60 = 65,555.90 : x
  2. Step 2: Convert to fraction form
    170,734.40/256,101.60 = 65,555.90/x
  3. Step 3: Cross multiply
    170,734.40x = 256,101.60 × 65,555.90
  4. Step 4: Simplify right side
    170,734.40x = 16,788,970,879.44
  5. Step 5: Solve for x
    x = 16,788,970,879.44/170,734.40
  6. Step 6: Final answer
    x = 98,333.85

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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.