Home / 279,997.56-386,399.16-152,673.66

Finding the Fourth Proportional to 279,997.56, 386,399.16 and 152,673.66

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Solution

The fourth proportional to 279,997.56, 386,399.16 and 152,673.66 is: 210,691.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,997.56 : 386,399.16 = 152,673.66 : x
  2. Step 2: Convert to fraction form
    279,997.56/386,399.16 = 152,673.66/x
  3. Step 3: Cross multiply
    279,997.56x = 386,399.16 × 152,673.66
  4. Step 4: Simplify right side
    279,997.56x = 58,992,973,978.13
  5. Step 5: Solve for x
    x = 58,992,973,978.13/279,997.56
  6. Step 6: Final answer
    x = 210,691.03

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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.