Home / 290,845.13-436,264.43-113,476.70

Finding the Fourth Proportional to 290,845.13, 436,264.43 and 113,476.70

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Solution

The fourth proportional to 290,845.13, 436,264.43 and 113,476.70 is: 170,213.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,845.13 : 436,264.43 = 113,476.70 : x
  2. Step 2: Convert to fraction form
    290,845.13/436,264.43 = 113,476.70/x
  3. Step 3: Cross multiply
    290,845.13x = 436,264.43 × 113,476.70
  4. Step 4: Simplify right side
    290,845.13x = 49,505,846,551.38
  5. Step 5: Solve for x
    x = 49,505,846,551.38/290,845.13
  6. Step 6: Final answer
    x = 170,213.77

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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.