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Finding the Fourth Proportional to 269,310, 371,645.80 and 148,451.40

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Solution

The fourth proportional to 269,310, 371,645.80 and 148,451.40 is: 204,861.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,310 : 371,645.80 = 148,451.40 : x
  2. Step 2: Convert to fraction form
    269,310/371,645.80 = 148,451.40/x
  3. Step 3: Cross multiply
    269,310x = 371,645.80 × 148,451.40
  4. Step 4: Simplify right side
    269,310x = 55,171,339,314.12
  5. Step 5: Solve for x
    x = 55,171,339,314.12/269,310
  6. Step 6: Final answer
    x = 204,861.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.