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Finding the Fourth Proportional to 170,916.60, 256,374.90 and 100,932.60

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Solution

The fourth proportional to 170,916.60, 256,374.90 and 100,932.60 is: 151,398.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,916.60 : 256,374.90 = 100,932.60 : x
  2. Step 2: Convert to fraction form
    170,916.60/256,374.90 = 100,932.60/x
  3. Step 3: Cross multiply
    170,916.60x = 256,374.90 × 100,932.60
  4. Step 4: Simplify right side
    170,916.60x = 25,876,585,231.74
  5. Step 5: Solve for x
    x = 25,876,585,231.74/170,916.60
  6. Step 6: Final answer
    x = 151,398.90

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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.