Home / 515,780.20-773,670.30-160,791.40

Finding the Fourth Proportional to 515,780.20, 773,670.30 and 160,791.40

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Solution

The fourth proportional to 515,780.20, 773,670.30 and 160,791.40 is: 241,187.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,780.20 : 773,670.30 = 160,791.40 : x
  2. Step 2: Convert to fraction form
    515,780.20/773,670.30 = 160,791.40/x
  3. Step 3: Cross multiply
    515,780.20x = 773,670.30 × 160,791.40
  4. Step 4: Simplify right side
    515,780.20x = 124,399,530,675.42
  5. Step 5: Solve for x
    x = 124,399,530,675.42/515,780.20
  6. Step 6: Final answer
    x = 241,187.10

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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.