Home / 204,887.20-307,580.40-130,007.20

Finding the Fourth Proportional to 204,887.20, 307,580.40 and 130,007.20

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Solution

The fourth proportional to 204,887.20, 307,580.40 and 130,007.20 is: 195,169.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,887.20 : 307,580.40 = 130,007.20 : x
  2. Step 2: Convert to fraction form
    204,887.20/307,580.40 = 130,007.20/x
  3. Step 3: Cross multiply
    204,887.20x = 307,580.40 × 130,007.20
  4. Step 4: Simplify right side
    204,887.20x = 39,987,666,578.88
  5. Step 5: Solve for x
    x = 39,987,666,578.88/204,887.20
  6. Step 6: Final answer
    x = 195,169.18

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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.