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Finding the Fourth Proportional to 239,489.39, 359,129.84 and 68,673.45

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Solution

The fourth proportional to 239,489.39, 359,129.84 and 68,673.45 is: 102,980.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,489.39 : 359,129.84 = 68,673.45 : x
  2. Step 2: Convert to fraction form
    239,489.39/359,129.84 = 68,673.45/x
  3. Step 3: Cross multiply
    239,489.39x = 359,129.84 × 68,673.45
  4. Step 4: Simplify right side
    239,489.39x = 24,662,686,114.12
  5. Step 5: Solve for x
    x = 24,662,686,114.12/239,489.39
  6. Step 6: Final answer
    x = 102,980.29

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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.