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Finding the Fourth Proportional to 399,101.90, 550,765.73 and 235,763.78

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Solution

The fourth proportional to 399,101.90, 550,765.73 and 235,763.78 is: 325,357.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,101.90 : 550,765.73 = 235,763.78 : x
  2. Step 2: Convert to fraction form
    399,101.90/550,765.73 = 235,763.78/x
  3. Step 3: Cross multiply
    399,101.90x = 550,765.73 × 235,763.78
  4. Step 4: Simplify right side
    399,101.90x = 129,850,609,220.44
  5. Step 5: Solve for x
    x = 129,850,609,220.44/399,101.90
  6. Step 6: Final answer
    x = 325,357.03

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.