Home / 525,197.20-787,811.97-205,336.30

Finding the Fourth Proportional to 525,197.20, 787,811.97 and 205,336.30

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Solution

The fourth proportional to 525,197.20, 787,811.97 and 205,336.30 is: 308,010.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,197.20 : 787,811.97 = 205,336.30 : x
  2. Step 2: Convert to fraction form
    525,197.20/787,811.97 = 205,336.30/x
  3. Step 3: Cross multiply
    525,197.20x = 787,811.97 × 205,336.30
  4. Step 4: Simplify right side
    525,197.20x = 161,766,391,076.45
  5. Step 5: Solve for x
    x = 161,766,391,076.45/525,197.20
  6. Step 6: Final answer
    x = 308,010.77

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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.