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Finding the Fourth Proportional to 290,783.70, 436,091.04 and 113,251.14

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Solution

The fourth proportional to 290,783.70, 436,091.04 and 113,251.14 is: 169,843.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,783.70 : 436,091.04 = 113,251.14 : x
  2. Step 2: Convert to fraction form
    290,783.70/436,091.04 = 113,251.14/x
  3. Step 3: Cross multiply
    290,783.70x = 436,091.04 × 113,251.14
  4. Step 4: Simplify right side
    290,783.70x = 49,387,807,423.79
  5. Step 5: Solve for x
    x = 49,387,807,423.79/290,783.70
  6. Step 6: Final answer
    x = 169,843.80

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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.