Home / 209,747.70-314,621.55-115,269.30

Finding the Fourth Proportional to 209,747.70, 314,621.55 and 115,269.30

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Solution

The fourth proportional to 209,747.70, 314,621.55 and 115,269.30 is: 172,903.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,747.70 : 314,621.55 = 115,269.30 : x
  2. Step 2: Convert to fraction form
    209,747.70/314,621.55 = 115,269.30/x
  3. Step 3: Cross multiply
    209,747.70x = 314,621.55 × 115,269.30
  4. Step 4: Simplify right side
    209,747.70x = 36,266,205,833.42
  5. Step 5: Solve for x
    x = 36,266,205,833.42/209,747.70
  6. Step 6: Final answer
    x = 172,903.95

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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.