Home / 205,028.30-307,542.45-172,369.10

Finding the Fourth Proportional to 205,028.30, 307,542.45 and 172,369.10

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Solution

The fourth proportional to 205,028.30, 307,542.45 and 172,369.10 is: 258,553.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,028.30 : 307,542.45 = 172,369.10 : x
  2. Step 2: Convert to fraction form
    205,028.30/307,542.45 = 172,369.10/x
  3. Step 3: Cross multiply
    205,028.30x = 307,542.45 × 172,369.10
  4. Step 4: Simplify right side
    205,028.30x = 53,010,815,318.30
  5. Step 5: Solve for x
    x = 53,010,815,318.30/205,028.30
  6. Step 6: Final answer
    x = 258,553.65

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1.5x scale

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.