Home / 279,631.47-386,119.17-227,956.78

Finding the Fourth Proportional to 279,631.47, 386,119.17 and 227,956.78

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Solution

The fourth proportional to 279,631.47, 386,119.17 and 227,956.78 is: 314,766.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,631.47 : 386,119.17 = 227,956.78 : x
  2. Step 2: Convert to fraction form
    279,631.47/386,119.17 = 227,956.78/x
  3. Step 3: Cross multiply
    279,631.47x = 386,119.17 × 227,956.78
  4. Step 4: Simplify right side
    279,631.47x = 88,018,483,172.12
  5. Step 5: Solve for x
    x = 88,018,483,172.12/279,631.47
  6. Step 6: Final answer
    x = 314,766.01

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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.