Home / 279,826.28-386,127.78-170,875.88

Finding the Fourth Proportional to 279,826.28, 386,127.78 and 170,875.88

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Solution

The fourth proportional to 279,826.28, 386,127.78 and 170,875.88 is: 235,788.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,826.28 : 386,127.78 = 170,875.88 : x
  2. Step 2: Convert to fraction form
    279,826.28/386,127.78 = 170,875.88/x
  3. Step 3: Cross multiply
    279,826.28x = 386,127.78 × 170,875.88
  4. Step 4: Simplify right side
    279,826.28x = 65,979,924,199.95
  5. Step 5: Solve for x
    x = 65,979,924,199.95/279,826.28
  6. Step 6: Final answer
    x = 235,788.88

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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.