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Finding the Fourth Proportional to 404,610.30, 606,915.45 and 194,139.90

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Solution

The fourth proportional to 404,610.30, 606,915.45 and 194,139.90 is: 291,209.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,610.30 : 606,915.45 = 194,139.90 : x
  2. Step 2: Convert to fraction form
    404,610.30/606,915.45 = 194,139.90/x
  3. Step 3: Cross multiply
    404,610.30x = 606,915.45 × 194,139.90
  4. Step 4: Simplify right side
    404,610.30x = 117,826,504,771.46
  5. Step 5: Solve for x
    x = 117,826,504,771.46/404,610.30
  6. Step 6: Final answer
    x = 291,209.85

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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.