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Finding the Fourth Proportional to 170,892.90, 256,339.35 and 100,851.30

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Solution

The fourth proportional to 170,892.90, 256,339.35 and 100,851.30 is: 151,276.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,892.90 : 256,339.35 = 100,851.30 : x
  2. Step 2: Convert to fraction form
    170,892.90/256,339.35 = 100,851.30/x
  3. Step 3: Cross multiply
    170,892.90x = 256,339.35 × 100,851.30
  4. Step 4: Simplify right side
    170,892.90x = 25,852,156,688.66
  5. Step 5: Solve for x
    x = 25,852,156,688.66/170,892.90
  6. Step 6: Final answer
    x = 151,276.95

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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.