Home / 268,933.20-402,708.60-198,430.80

Finding the Fourth Proportional to 268,933.20, 402,708.60 and 198,430.80

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Solution

The fourth proportional to 268,933.20, 402,708.60 and 198,430.80 is: 297,136.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,933.20 : 402,708.60 = 198,430.80 : x
  2. Step 2: Convert to fraction form
    268,933.20/402,708.60 = 198,430.80/x
  3. Step 3: Cross multiply
    268,933.20x = 402,708.60 × 198,430.80
  4. Step 4: Simplify right side
    268,933.20x = 79,909,789,664.88
  5. Step 5: Solve for x
    x = 79,909,789,664.88/268,933.20
  6. Step 6: Final answer
    x = 297,136.20

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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.