Home / 347,839.60-521,759.40-214,286.80

Finding the Fourth Proportional to 347,839.60, 521,759.40 and 214,286.80

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Solution

The fourth proportional to 347,839.60, 521,759.40 and 214,286.80 is: 321,430.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,839.60 : 521,759.40 = 214,286.80 : x
  2. Step 2: Convert to fraction form
    347,839.60/521,759.40 = 214,286.80/x
  3. Step 3: Cross multiply
    347,839.60x = 521,759.40 × 214,286.80
  4. Step 4: Simplify right side
    347,839.60x = 111,806,152,195.92
  5. Step 5: Solve for x
    x = 111,806,152,195.92/347,839.60
  6. Step 6: Final answer
    x = 321,430.20

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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.