Home / 205,223.20-307,604.40-105,344.80

Finding the Fourth Proportional to 205,223.20, 307,604.40 and 105,344.80

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Solution

The fourth proportional to 205,223.20, 307,604.40 and 105,344.80 is: 157,898.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,223.20 : 307,604.40 = 105,344.80 : x
  2. Step 2: Convert to fraction form
    205,223.20/307,604.40 = 105,344.80/x
  3. Step 3: Cross multiply
    205,223.20x = 307,604.40 × 105,344.80
  4. Step 4: Simplify right side
    205,223.20x = 32,404,523,997.12
  5. Step 5: Solve for x
    x = 32,404,523,997.12/205,223.20
  6. Step 6: Final answer
    x = 157,898.93

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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.