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Finding the Fourth Proportional to 279,875.84, 386,010.24 and 179,283.20

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Solution

The fourth proportional to 279,875.84, 386,010.24 and 179,283.20 is: 247,270.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,875.84 : 386,010.24 = 179,283.20 : x
  2. Step 2: Convert to fraction form
    279,875.84/386,010.24 = 179,283.20/x
  3. Step 3: Cross multiply
    279,875.84x = 386,010.24 × 179,283.20
  4. Step 4: Simplify right side
    279,875.84x = 69,205,151,059.97
  5. Step 5: Solve for x
    x = 69,205,151,059.97/279,875.84
  6. Step 6: Final answer
    x = 247,270.90

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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.