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Finding the Fourth Proportional to 220,034.60, 330,440.70 and 170,235.80

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Solution

The fourth proportional to 220,034.60, 330,440.70 and 170,235.80 is: 255,654.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,034.60 : 330,440.70 = 170,235.80 : x
  2. Step 2: Convert to fraction form
    220,034.60/330,440.70 = 170,235.80/x
  3. Step 3: Cross multiply
    220,034.60x = 330,440.70 × 170,235.80
  4. Step 4: Simplify right side
    220,034.60x = 56,252,836,917.06
  5. Step 5: Solve for x
    x = 56,252,836,917.06/220,034.60
  6. Step 6: Final answer
    x = 255,654.51

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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.