Home / 511,020.80-766,531.20-195,315.20

Finding the Fourth Proportional to 511,020.80, 766,531.20 and 195,315.20

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Solution

The fourth proportional to 511,020.80, 766,531.20 and 195,315.20 is: 292,972.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,020.80 : 766,531.20 = 195,315.20 : x
  2. Step 2: Convert to fraction form
    511,020.80/766,531.20 = 195,315.20/x
  3. Step 3: Cross multiply
    511,020.80x = 766,531.20 × 195,315.20
  4. Step 4: Simplify right side
    511,020.80x = 149,715,194,634.24
  5. Step 5: Solve for x
    x = 149,715,194,634.24/511,020.80
  6. Step 6: Final answer
    x = 292,972.80

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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.