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Finding the Fourth Proportional to 267,943.20, 401,569.20 and 205,303.20

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Solution

The fourth proportional to 267,943.20, 401,569.20 and 205,303.20 is: 307,689.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,943.20 : 401,569.20 = 205,303.20 : x
  2. Step 2: Convert to fraction form
    267,943.20/401,569.20 = 205,303.20/x
  3. Step 3: Cross multiply
    267,943.20x = 401,569.20 × 205,303.20
  4. Step 4: Simplify right side
    267,943.20x = 82,443,441,781.44
  5. Step 5: Solve for x
    x = 82,443,441,781.44/267,943.20
  6. Step 6: Final answer
    x = 307,689.99

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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.