Home / 212,197.82-318,296.79-54,426.26

Finding the Fourth Proportional to 212,197.82, 318,296.79 and 54,426.26

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Solution

The fourth proportional to 212,197.82, 318,296.79 and 54,426.26 is: 81,639.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,197.82 : 318,296.79 = 54,426.26 : x
  2. Step 2: Convert to fraction form
    212,197.82/318,296.79 = 54,426.26/x
  3. Step 3: Cross multiply
    212,197.82x = 318,296.79 × 54,426.26
  4. Step 4: Simplify right side
    212,197.82x = 17,323,704,645.45
  5. Step 5: Solve for x
    x = 17,323,704,645.45/212,197.82
  6. Step 6: Final answer
    x = 81,639.41

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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.