Home / 212,361.13-318,168.03-199,718.65

Finding the Fourth Proportional to 212,361.13, 318,168.03 and 199,718.65

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Solution

The fourth proportional to 212,361.13, 318,168.03 and 199,718.65 is: 299,226.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,361.13 : 318,168.03 = 199,718.65 : x
  2. Step 2: Convert to fraction form
    212,361.13/318,168.03 = 199,718.65/x
  3. Step 3: Cross multiply
    212,361.13x = 318,168.03 × 199,718.65
  4. Step 4: Simplify right side
    212,361.13x = 63,544,089,424.76
  5. Step 5: Solve for x
    x = 63,544,089,424.76/212,361.13
  6. Step 6: Final answer
    x = 299,226.56

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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.