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Finding the Fourth Proportional to 397,954.92, 549,236.72 and 234,641.39

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Solution

The fourth proportional to 397,954.92, 549,236.72 and 234,641.39 is: 323,839.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,954.92 : 549,236.72 = 234,641.39 : x
  2. Step 2: Convert to fraction form
    397,954.92/549,236.72 = 234,641.39/x
  3. Step 3: Cross multiply
    397,954.92x = 549,236.72 × 234,641.39
  4. Step 4: Simplify right side
    397,954.92x = 128,873,665,260.26
  5. Step 5: Solve for x
    x = 128,873,665,260.26/397,954.92
  6. Step 6: Final answer
    x = 323,839.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.