Home / 279,825.14-386,172.38-157,356.06

Finding the Fourth Proportional to 279,825.14, 386,172.38 and 157,356.06

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Solution

The fourth proportional to 279,825.14, 386,172.38 and 157,356.06 is: 217,159.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,825.14 : 386,172.38 = 157,356.06 : x
  2. Step 2: Convert to fraction form
    279,825.14/386,172.38 = 157,356.06/x
  3. Step 3: Cross multiply
    279,825.14x = 386,172.38 × 157,356.06
  4. Step 4: Simplify right side
    279,825.14x = 60,766,564,490.35
  5. Step 5: Solve for x
    x = 60,766,564,490.35/279,825.14
  6. Step 6: Final answer
    x = 217,159.06

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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.