Home / 279,721.97-386,016.36-152,397.57

Finding the Fourth Proportional to 279,721.97, 386,016.36 and 152,397.57

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Solution

The fourth proportional to 279,721.97, 386,016.36 and 152,397.57 is: 210,308.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,721.97 : 386,016.36 = 152,397.57 : x
  2. Step 2: Convert to fraction form
    279,721.97/386,016.36 = 152,397.57/x
  3. Step 3: Cross multiply
    279,721.97x = 386,016.36 × 152,397.57
  4. Step 4: Simplify right side
    279,721.97x = 58,827,955,244.25
  5. Step 5: Solve for x
    x = 58,827,955,244.25/279,721.97
  6. Step 6: Final answer
    x = 210,308.67

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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.