Home / 204,891.20-307,336.80-195,214.40

Finding the Fourth Proportional to 204,891.20, 307,336.80 and 195,214.40

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Solution

The fourth proportional to 204,891.20, 307,336.80 and 195,214.40 is: 292,821.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,891.20 : 307,336.80 = 195,214.40 : x
  2. Step 2: Convert to fraction form
    204,891.20/307,336.80 = 195,214.40/x
  3. Step 3: Cross multiply
    204,891.20x = 307,336.80 × 195,214.40
  4. Step 4: Simplify right side
    204,891.20x = 59,996,569,009.92
  5. Step 5: Solve for x
    x = 59,996,569,009.92/204,891.20
  6. Step 6: Final answer
    x = 292,821.60

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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.