Home / 212,207.35-318,954.11-140,405.16

Finding the Fourth Proportional to 212,207.35, 318,954.11 and 140,405.16

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Solution

The fourth proportional to 212,207.35, 318,954.11 and 140,405.16 is: 211,033.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,207.35 : 318,954.11 = 140,405.16 : x
  2. Step 2: Convert to fraction form
    212,207.35/318,954.11 = 140,405.16/x
  3. Step 3: Cross multiply
    212,207.35x = 318,954.11 × 140,405.16
  4. Step 4: Simplify right side
    212,207.35x = 44,782,801,252.44
  5. Step 5: Solve for x
    x = 44,782,801,252.44/212,207.35
  6. Step 6: Final answer
    x = 211,033.23

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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.