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Finding the Fourth Proportional to 220,839.84, 304,767.36 and 125,350.56

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Solution

The fourth proportional to 220,839.84, 304,767.36 and 125,350.56 is: 172,988.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,839.84 : 304,767.36 = 125,350.56 : x
  2. Step 2: Convert to fraction form
    220,839.84/304,767.36 = 125,350.56/x
  3. Step 3: Cross multiply
    220,839.84x = 304,767.36 × 125,350.56
  4. Step 4: Simplify right side
    220,839.84x = 38,202,759,245.72
  5. Step 5: Solve for x
    x = 38,202,759,245.72/220,839.84
  6. Step 6: Final answer
    x = 172,988.53

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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.