Home / 268,983.20-402,783.60-198,480.80

Finding the Fourth Proportional to 268,983.20, 402,783.60 and 198,480.80

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Solution

The fourth proportional to 268,983.20, 402,783.60 and 198,480.80 is: 297,211.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,983.20 : 402,783.60 = 198,480.80 : x
  2. Step 2: Convert to fraction form
    268,983.20/402,783.60 = 198,480.80/x
  3. Step 3: Cross multiply
    268,983.20x = 402,783.60 × 198,480.80
  4. Step 4: Simplify right side
    268,983.20x = 79,944,811,154.88
  5. Step 5: Solve for x
    x = 79,944,811,154.88/268,983.20
  6. Step 6: Final answer
    x = 297,211.17

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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.