Home / 204,810.60-307,215.90-145,324.20

Finding the Fourth Proportional to 204,810.60, 307,215.90 and 145,324.20

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Solution

The fourth proportional to 204,810.60, 307,215.90 and 145,324.20 is: 217,986.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,810.60 : 307,215.90 = 145,324.20 : x
  2. Step 2: Convert to fraction form
    204,810.60/307,215.90 = 145,324.20/x
  3. Step 3: Cross multiply
    204,810.60x = 307,215.90 × 145,324.20
  4. Step 4: Simplify right side
    204,810.60x = 44,645,904,894.78
  5. Step 5: Solve for x
    x = 44,645,904,894.78/204,810.60
  6. Step 6: Final answer
    x = 217,986.30

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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.