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Finding the Fourth Proportional to 170,741.80, 256,307.10 and 100,660.60

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Solution

The fourth proportional to 170,741.80, 256,307.10 and 100,660.60 is: 151,105.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,741.80 : 256,307.10 = 100,660.60 : x
  2. Step 2: Convert to fraction form
    170,741.80/256,307.10 = 100,660.60/x
  3. Step 3: Cross multiply
    170,741.80x = 256,307.10 × 100,660.60
  4. Step 4: Simplify right side
    170,741.80x = 25,800,026,470.26
  5. Step 5: Solve for x
    x = 25,800,026,470.26/170,741.80
  6. Step 6: Final answer
    x = 151,105.51

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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.