Home / 347,810.80-521,716.20-268,981.60

Finding the Fourth Proportional to 347,810.80, 521,716.20 and 268,981.60

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Solution

The fourth proportional to 347,810.80, 521,716.20 and 268,981.60 is: 403,472.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,810.80 : 521,716.20 = 268,981.60 : x
  2. Step 2: Convert to fraction form
    347,810.80/521,716.20 = 268,981.60/x
  3. Step 3: Cross multiply
    347,810.80x = 521,716.20 × 268,981.60
  4. Step 4: Simplify right side
    347,810.80x = 140,332,058,221.92
  5. Step 5: Solve for x
    x = 140,332,058,221.92/347,810.80
  6. Step 6: Final answer
    x = 403,472.40

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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.