Home / 204,919.16-307,388.15-76,866.05

Finding the Fourth Proportional to 204,919.16, 307,388.15 and 76,866.05

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Solution

The fourth proportional to 204,919.16, 307,388.15 and 76,866.05 is: 115,302.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,919.16 : 307,388.15 = 76,866.05 : x
  2. Step 2: Convert to fraction form
    204,919.16/307,388.15 = 76,866.05/x
  3. Step 3: Cross multiply
    204,919.16x = 307,388.15 × 76,866.05
  4. Step 4: Simplify right side
    204,919.16x = 23,627,710,986.04
  5. Step 5: Solve for x
    x = 23,627,710,986.04/204,919.16
  6. Step 6: Final answer
    x = 115,302.60

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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.