Home / 290,805.11-436,207.82-91,141.04

Finding the Fourth Proportional to 290,805.11, 436,207.82 and 91,141.04

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Solution

The fourth proportional to 290,805.11, 436,207.82 and 91,141.04 is: 136,711.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,805.11 : 436,207.82 = 91,141.04 : x
  2. Step 2: Convert to fraction form
    290,805.11/436,207.82 = 91,141.04/x
  3. Step 3: Cross multiply
    290,805.11x = 436,207.82 × 91,141.04
  4. Step 4: Simplify right side
    290,805.11x = 39,756,435,005.75
  5. Step 5: Solve for x
    x = 39,756,435,005.75/290,805.11
  6. Step 6: Final answer
    x = 136,711.61

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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.