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Finding the Fourth Proportional to 245,540.52, 368,309.68 and 68,047

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Solution

The fourth proportional to 245,540.52, 368,309.68 and 68,047 is: 102,070.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,540.52 : 368,309.68 = 68,047 : x
  2. Step 2: Convert to fraction form
    245,540.52/368,309.68 = 68,047/x
  3. Step 3: Cross multiply
    245,540.52x = 368,309.68 × 68,047
  4. Step 4: Simplify right side
    245,540.52x = 25,062,368,794.96
  5. Step 5: Solve for x
    x = 25,062,368,794.96/245,540.52
  6. Step 6: Final answer
    x = 102,070.20

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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.