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Finding the Fourth Proportional to 212,494.59, 319,184.55 and 179,279.73

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Solution

The fourth proportional to 212,494.59, 319,184.55 and 179,279.73 is: 269,293.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,494.59 : 319,184.55 = 179,279.73 : x
  2. Step 2: Convert to fraction form
    212,494.59/319,184.55 = 179,279.73/x
  3. Step 3: Cross multiply
    212,494.59x = 319,184.55 × 179,279.73
  4. Step 4: Simplify right side
    212,494.59x = 57,223,319,944.17
  5. Step 5: Solve for x
    x = 57,223,319,944.17/212,494.59
  6. Step 6: Final answer
    x = 269,293.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.