Home / 205,101.12-307,208.81-200,081.96

Finding the Fourth Proportional to 205,101.12, 307,208.81 and 200,081.96

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Solution

The fourth proportional to 205,101.12, 307,208.81 and 200,081.96 is: 299,690.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,101.12 : 307,208.81 = 200,081.96 : x
  2. Step 2: Convert to fraction form
    205,101.12/307,208.81 = 200,081.96/x
  3. Step 3: Cross multiply
    205,101.12x = 307,208.81 × 200,081.96
  4. Step 4: Simplify right side
    205,101.12x = 61,466,940,950.26
  5. Step 5: Solve for x
    x = 61,466,940,950.26/205,101.12
  6. Step 6: Final answer
    x = 299,690.90

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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.