Home / 408,815.39-613,247.69-172,176.52

Finding the Fourth Proportional to 408,815.39, 613,247.69 and 172,176.52

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Solution

The fourth proportional to 408,815.39, 613,247.69 and 172,176.52 is: 258,275.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,815.39 : 613,247.69 = 172,176.52 : x
  2. Step 2: Convert to fraction form
    408,815.39/613,247.69 = 172,176.52/x
  3. Step 3: Cross multiply
    408,815.39x = 613,247.69 × 172,176.52
  4. Step 4: Simplify right side
    408,815.39x = 105,586,853,162.24
  5. Step 5: Solve for x
    x = 105,586,853,162.24/408,815.39
  6. Step 6: Final answer
    x = 258,275.14

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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.