Home / 199,377.86-298,979.30-74,631.38

Finding the Fourth Proportional to 199,377.86, 298,979.30 and 74,631.38

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Solution

The fourth proportional to 199,377.86, 298,979.30 and 74,631.38 is: 111,914.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,377.86 : 298,979.30 = 74,631.38 : x
  2. Step 2: Convert to fraction form
    199,377.86/298,979.30 = 74,631.38/x
  3. Step 3: Cross multiply
    199,377.86x = 298,979.30 × 74,631.38
  4. Step 4: Simplify right side
    199,377.86x = 22,313,236,442.12
  5. Step 5: Solve for x
    x = 22,313,236,442.12/199,377.86
  6. Step 6: Final answer
    x = 111,914.32

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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.