Home / 205,223.20-307,834.80-64,981.60

Finding the Fourth Proportional to 205,223.20, 307,834.80 and 64,981.60

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Solution

The fourth proportional to 205,223.20, 307,834.80 and 64,981.60 is: 97,472.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,223.20 : 307,834.80 = 64,981.60 : x
  2. Step 2: Convert to fraction form
    205,223.20/307,834.80 = 64,981.60/x
  3. Step 3: Cross multiply
    205,223.20x = 307,834.80 × 64,981.60
  4. Step 4: Simplify right side
    205,223.20x = 20,003,597,839.68
  5. Step 5: Solve for x
    x = 20,003,597,839.68/205,223.20
  6. Step 6: Final answer
    x = 97,472.40

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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.