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Finding the Fourth Proportional to 220,926.49, 304,859.86 and 124,122.78

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Solution

The fourth proportional to 220,926.49, 304,859.86 and 124,122.78 is: 171,278.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,926.49 : 304,859.86 = 124,122.78 : x
  2. Step 2: Convert to fraction form
    220,926.49/304,859.86 = 124,122.78/x
  3. Step 3: Cross multiply
    220,926.49x = 304,859.86 × 124,122.78
  4. Step 4: Simplify right side
    220,926.49x = 37,840,053,023.30
  5. Step 5: Solve for x
    x = 37,840,053,023.30/220,926.49
  6. Step 6: Final answer
    x = 171,278.93

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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.