Home / 212,505.47-318,834.07-100,201.66

Finding the Fourth Proportional to 212,505.47, 318,834.07 and 100,201.66

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Solution

The fourth proportional to 212,505.47, 318,834.07 and 100,201.66 is: 150,338.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,505.47 : 318,834.07 = 100,201.66 : x
  2. Step 2: Convert to fraction form
    212,505.47/318,834.07 = 100,201.66/x
  3. Step 3: Cross multiply
    212,505.47x = 318,834.07 × 100,201.66
  4. Step 4: Simplify right side
    212,505.47x = 31,947,702,594.60
  5. Step 5: Solve for x
    x = 31,947,702,594.60/212,505.47
  6. Step 6: Final answer
    x = 150,338.26

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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.