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Finding the Fourth Proportional to 220,740.57, 304,680.57 and 135,928.71

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Solution

The fourth proportional to 220,740.57, 304,680.57 and 135,928.71 is: 187,617.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,740.57 : 304,680.57 = 135,928.71 : x
  2. Step 2: Convert to fraction form
    220,740.57/304,680.57 = 135,928.71/x
  3. Step 3: Cross multiply
    220,740.57x = 304,680.57 × 135,928.71
  4. Step 4: Simplify right side
    220,740.57x = 41,414,836,842.16
  5. Step 5: Solve for x
    x = 41,414,836,842.16/220,740.57
  6. Step 6: Final answer
    x = 187,617.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.