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Finding the Fourth Proportional to 279,903.54, 386,029.17 and 236,508.69

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Solution

The fourth proportional to 279,903.54, 386,029.17 and 236,508.69 is: 326,181.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,903.54 : 386,029.17 = 236,508.69 : x
  2. Step 2: Convert to fraction form
    279,903.54/386,029.17 = 236,508.69/x
  3. Step 3: Cross multiply
    279,903.54x = 386,029.17 × 236,508.69
  4. Step 4: Simplify right side
    279,903.54x = 91,299,253,298.49
  5. Step 5: Solve for x
    x = 91,299,253,298.49/279,903.54
  6. Step 6: Final answer
    x = 326,181.13

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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.