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Finding the Fourth Proportional to 245,791.08, 368,686.40 and 68,298

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Solution

The fourth proportional to 245,791.08, 368,686.40 and 68,298 is: 102,446.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,791.08 : 368,686.40 = 68,298 : x
  2. Step 2: Convert to fraction form
    245,791.08/368,686.40 = 68,298/x
  3. Step 3: Cross multiply
    245,791.08x = 368,686.40 × 68,298
  4. Step 4: Simplify right side
    245,791.08x = 25,180,543,747.20
  5. Step 5: Solve for x
    x = 25,180,543,747.20/245,791.08
  6. Step 6: Final answer
    x = 102,446.94

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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.