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Finding the Fourth Proportional to 386,732.03, 579,959.06 and 133,944.39

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Solution

The fourth proportional to 386,732.03, 579,959.06 and 133,944.39 is: 200,868.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,732.03 : 579,959.06 = 133,944.39 : x
  2. Step 2: Convert to fraction form
    386,732.03/579,959.06 = 133,944.39/x
  3. Step 3: Cross multiply
    386,732.03x = 579,959.06 × 133,944.39
  4. Step 4: Simplify right side
    386,732.03x = 77,682,261,846.95
  5. Step 5: Solve for x
    x = 77,682,261,846.95/386,732.03
  6. Step 6: Final answer
    x = 200,868.45

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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.