Home / 204,815.60-307,223.40-145,329.20

Finding the Fourth Proportional to 204,815.60, 307,223.40 and 145,329.20

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Solution

The fourth proportional to 204,815.60, 307,223.40 and 145,329.20 is: 217,993.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,815.60 : 307,223.40 = 145,329.20 : x
  2. Step 2: Convert to fraction form
    204,815.60/307,223.40 = 145,329.20/x
  3. Step 3: Cross multiply
    204,815.60x = 307,223.40 × 145,329.20
  4. Step 4: Simplify right side
    204,815.60x = 44,648,530,943.28
  5. Step 5: Solve for x
    x = 44,648,530,943.28/204,815.60
  6. Step 6: Final answer
    x = 217,993.80

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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.