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Finding the Fourth Proportional to 243,851.40, 366,651.90 and 205,360.20

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Solution

The fourth proportional to 243,851.40, 366,651.90 and 205,360.20 is: 308,777.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,851.40 : 366,651.90 = 205,360.20 : x
  2. Step 2: Convert to fraction form
    243,851.40/366,651.90 = 205,360.20/x
  3. Step 3: Cross multiply
    243,851.40x = 366,651.90 × 205,360.20
  4. Step 4: Simplify right side
    243,851.40x = 75,295,707,514.38
  5. Step 5: Solve for x
    x = 75,295,707,514.38/243,851.40
  6. Step 6: Final answer
    x = 308,777.02

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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.