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Finding the Fourth Proportional to 170,418.40, 255,627.60 and 107,432.80

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Solution

The fourth proportional to 170,418.40, 255,627.60 and 107,432.80 is: 161,149.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,418.40 : 255,627.60 = 107,432.80 : x
  2. Step 2: Convert to fraction form
    170,418.40/255,627.60 = 107,432.80/x
  3. Step 3: Cross multiply
    170,418.40x = 255,627.60 × 107,432.80
  4. Step 4: Simplify right side
    170,418.40x = 27,462,788,825.28
  5. Step 5: Solve for x
    x = 27,462,788,825.28/170,418.40
  6. Step 6: Final answer
    x = 161,149.20

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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.