Home / 279,093.49-385,137.38-158,242.95

Finding the Fourth Proportional to 279,093.49, 385,137.38 and 158,242.95

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Solution

The fourth proportional to 279,093.49, 385,137.38 and 158,242.95 is: 218,368.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,093.49 : 385,137.38 = 158,242.95 : x
  2. Step 2: Convert to fraction form
    279,093.49/385,137.38 = 158,242.95/x
  3. Step 3: Cross multiply
    279,093.49x = 385,137.38 × 158,242.95
  4. Step 4: Simplify right side
    279,093.49x = 60,945,275,562.08
  5. Step 5: Solve for x
    x = 60,945,275,562.08/279,093.49
  6. Step 6: Final answer
    x = 218,368.68

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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.