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Finding the Fourth Proportional to 436,310.72, 654,466 and 136,792.84

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Solution

The fourth proportional to 436,310.72, 654,466 and 136,792.84 is: 205,189.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,310.72 : 654,466 = 136,792.84 : x
  2. Step 2: Convert to fraction form
    436,310.72/654,466 = 136,792.84/x
  3. Step 3: Cross multiply
    436,310.72x = 654,466 × 136,792.84
  4. Step 4: Simplify right side
    436,310.72x = 89,526,262,823.44
  5. Step 5: Solve for x
    x = 89,526,262,823.44/436,310.72
  6. Step 6: Final answer
    x = 205,189.23

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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.