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Finding the Fourth Proportional to 279,310.66, 418,716.81 and 232,311.32

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Solution

The fourth proportional to 279,310.66, 418,716.81 and 232,311.32 is: 348,259.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,310.66 : 418,716.81 = 232,311.32 : x
  2. Step 2: Convert to fraction form
    279,310.66/418,716.81 = 232,311.32/x
  3. Step 3: Cross multiply
    279,310.66x = 418,716.81 × 232,311.32
  4. Step 4: Simplify right side
    279,310.66x = 97,272,654,837.29
  5. Step 5: Solve for x
    x = 97,272,654,837.29/279,310.66
  6. Step 6: Final answer
    x = 348,259.73

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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.