Home / 212,194.42-318,093.89-145,665.88

Finding the Fourth Proportional to 212,194.42, 318,093.89 and 145,665.88

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Solution

The fourth proportional to 212,194.42, 318,093.89 and 145,665.88 is: 218,363.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,194.42 : 318,093.89 = 145,665.88 : x
  2. Step 2: Convert to fraction form
    212,194.42/318,093.89 = 145,665.88/x
  3. Step 3: Cross multiply
    212,194.42x = 318,093.89 × 145,665.88
  4. Step 4: Simplify right side
    212,194.42x = 46,335,424,885.91
  5. Step 5: Solve for x
    x = 46,335,424,885.91/212,194.42
  6. Step 6: Final answer
    x = 218,363.07

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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.