Home / 212,914.80-319,372.20-195,711.60

Finding the Fourth Proportional to 212,914.80, 319,372.20 and 195,711.60

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Solution

The fourth proportional to 212,914.80, 319,372.20 and 195,711.60 is: 293,567.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,914.80 : 319,372.20 = 195,711.60 : x
  2. Step 2: Convert to fraction form
    212,914.80/319,372.20 = 195,711.60/x
  3. Step 3: Cross multiply
    212,914.80x = 319,372.20 × 195,711.60
  4. Step 4: Simplify right side
    212,914.80x = 62,504,844,257.52
  5. Step 5: Solve for x
    x = 62,504,844,257.52/212,914.80
  6. Step 6: Final answer
    x = 293,567.40

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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.