Home / 318,690.45-439,867.62-182,721.96

Finding the Fourth Proportional to 318,690.45, 439,867.62 and 182,721.96

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Solution

The fourth proportional to 318,690.45, 439,867.62 and 182,721.96 is: 252,199.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,690.45 : 439,867.62 = 182,721.96 : x
  2. Step 2: Convert to fraction form
    318,690.45/439,867.62 = 182,721.96/x
  3. Step 3: Cross multiply
    318,690.45x = 439,867.62 × 182,721.96
  4. Step 4: Simplify right side
    318,690.45x = 80,373,473,666.94
  5. Step 5: Solve for x
    x = 80,373,473,666.94/318,690.45
  6. Step 6: Final answer
    x = 252,199.19

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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.