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Finding the Fourth Proportional to 306,187.38, 458,298.38 and 163,676.28

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Solution

The fourth proportional to 306,187.38, 458,298.38 and 163,676.28 is: 244,989.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,187.38 : 458,298.38 = 163,676.28 : x
  2. Step 2: Convert to fraction form
    306,187.38/458,298.38 = 163,676.28/x
  3. Step 3: Cross multiply
    306,187.38x = 458,298.38 × 163,676.28
  4. Step 4: Simplify right side
    306,187.38x = 75,012,573,968.43
  5. Step 5: Solve for x
    x = 75,012,573,968.43/306,187.38
  6. Step 6: Final answer
    x = 244,989.11

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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.