Home / 212,542.79-318,464.26-148,507.43

Finding the Fourth Proportional to 212,542.79, 318,464.26 and 148,507.43

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Solution

The fourth proportional to 212,542.79, 318,464.26 and 148,507.43 is: 222,516.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,542.79 : 318,464.26 = 148,507.43 : x
  2. Step 2: Convert to fraction form
    212,542.79/318,464.26 = 148,507.43/x
  3. Step 3: Cross multiply
    212,542.79x = 318,464.26 × 148,507.43
  4. Step 4: Simplify right side
    212,542.79x = 47,294,306,835.86
  5. Step 5: Solve for x
    x = 47,294,306,835.86/212,542.79
  6. Step 6: Final answer
    x = 222,516.64

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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.