Home / 279,944.54-386,330.82-172,585.52

Finding the Fourth Proportional to 279,944.54, 386,330.82 and 172,585.52

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Solution

The fourth proportional to 279,944.54, 386,330.82 and 172,585.52 is: 238,172.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,944.54 : 386,330.82 = 172,585.52 : x
  2. Step 2: Convert to fraction form
    279,944.54/386,330.82 = 172,585.52/x
  3. Step 3: Cross multiply
    279,944.54x = 386,330.82 × 172,585.52
  4. Step 4: Simplify right side
    279,944.54x = 66,675,105,461.73
  5. Step 5: Solve for x
    x = 66,675,105,461.73/279,944.54
  6. Step 6: Final answer
    x = 238,172.55

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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.