Home / 279,708.19-385,997.79-158,849.45

Finding the Fourth Proportional to 279,708.19, 385,997.79 and 158,849.45

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Solution

The fourth proportional to 279,708.19, 385,997.79 and 158,849.45 is: 219,212.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,708.19 : 385,997.79 = 158,849.45 : x
  2. Step 2: Convert to fraction form
    279,708.19/385,997.79 = 158,849.45/x
  3. Step 3: Cross multiply
    279,708.19x = 385,997.79 × 158,849.45
  4. Step 4: Simplify right side
    279,708.19x = 61,315,536,642.72
  5. Step 5: Solve for x
    x = 61,315,536,642.72/279,708.19
  6. Step 6: Final answer
    x = 219,212.52

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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.