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Finding the Fourth Proportional to 221,333.88, 305,402.67 and 124,524.29

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Solution

The fourth proportional to 221,333.88, 305,402.67 and 124,524.29 is: 171,822.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,333.88 : 305,402.67 = 124,524.29 : x
  2. Step 2: Convert to fraction form
    221,333.88/305,402.67 = 124,524.29/x
  3. Step 3: Cross multiply
    221,333.88x = 305,402.67 × 124,524.29
  4. Step 4: Simplify right side
    221,333.88x = 38,030,049,691.47
  5. Step 5: Solve for x
    x = 38,030,049,691.47/221,333.88
  6. Step 6: Final answer
    x = 171,822.09

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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.