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Finding the Fourth Proportional to 318,346.59, 439,380.72 and 182,471.61

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Solution

The fourth proportional to 318,346.59, 439,380.72 and 182,471.61 is: 251,846.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,346.59 : 439,380.72 = 182,471.61 : x
  2. Step 2: Convert to fraction form
    318,346.59/439,380.72 = 182,471.61/x
  3. Step 3: Cross multiply
    318,346.59x = 439,380.72 × 182,471.61
  4. Step 4: Simplify right side
    318,346.59x = 80,174,507,381.36
  5. Step 5: Solve for x
    x = 80,174,507,381.36/318,346.59
  6. Step 6: Final answer
    x = 251,846.60

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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.