Home / 215,784.30-323,845.95-149,689.54

Finding the Fourth Proportional to 215,784.30, 323,845.95 and 149,689.54

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Solution

The fourth proportional to 215,784.30, 323,845.95 and 149,689.54 is: 224,651.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,784.30 : 323,845.95 = 149,689.54 : x
  2. Step 2: Convert to fraction form
    215,784.30/323,845.95 = 149,689.54/x
  3. Step 3: Cross multiply
    215,784.30x = 323,845.95 × 149,689.54
  4. Step 4: Simplify right side
    215,784.30x = 48,476,351,286.36
  5. Step 5: Solve for x
    x = 48,476,351,286.36/215,784.30
  6. Step 6: Final answer
    x = 224,651.89

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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.