Home / 212,434.20-318,651.30-148,843.80

Finding the Fourth Proportional to 212,434.20, 318,651.30 and 148,843.80

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Solution

The fourth proportional to 212,434.20, 318,651.30 and 148,843.80 is: 223,265.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,434.20 : 318,651.30 = 148,843.80 : x
  2. Step 2: Convert to fraction form
    212,434.20/318,651.30 = 148,843.80/x
  3. Step 3: Cross multiply
    212,434.20x = 318,651.30 × 148,843.80
  4. Step 4: Simplify right side
    212,434.20x = 47,429,270,366.94
  5. Step 5: Solve for x
    x = 47,429,270,366.94/212,434.20
  6. Step 6: Final answer
    x = 223,265.70

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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.