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Finding the Fourth Proportional to 170,250.12, 255,600.90 and 145,449.54

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Solution

The fourth proportional to 170,250.12, 255,600.90 and 145,449.54 is: 218,367.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,250.12 : 255,600.90 = 145,449.54 : x
  2. Step 2: Convert to fraction form
    170,250.12/255,600.90 = 145,449.54/x
  3. Step 3: Cross multiply
    170,250.12x = 255,600.90 × 145,449.54
  4. Step 4: Simplify right side
    170,250.12x = 37,177,033,328.59
  5. Step 5: Solve for x
    x = 37,177,033,328.59/170,250.12
  6. Step 6: Final answer
    x = 218,367.15

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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.