Home / 290,918.34-436,364.82-91,234.17

Finding the Fourth Proportional to 290,918.34, 436,364.82 and 91,234.17

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Solution

The fourth proportional to 290,918.34, 436,364.82 and 91,234.17 is: 136,847.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,918.34 : 436,364.82 = 91,234.17 : x
  2. Step 2: Convert to fraction form
    290,918.34/436,364.82 = 91,234.17/x
  3. Step 3: Cross multiply
    290,918.34x = 436,364.82 × 91,234.17
  4. Step 4: Simplify right side
    290,918.34x = 39,811,382,169.90
  5. Step 5: Solve for x
    x = 39,811,382,169.90/290,918.34
  6. Step 6: Final answer
    x = 136,847.28

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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.