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Finding the Fourth Proportional to 290,845.89, 436,265.52 and 113,477.49

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Solution

The fourth proportional to 290,845.89, 436,265.52 and 113,477.49 is: 170,214.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,845.89 : 436,265.52 = 113,477.49 : x
  2. Step 2: Convert to fraction form
    290,845.89/436,265.52 = 113,477.49/x
  3. Step 3: Cross multiply
    290,845.89x = 436,265.52 × 113,477.49
  4. Step 4: Simplify right side
    290,845.89x = 49,506,316,183.14
  5. Step 5: Solve for x
    x = 49,506,316,183.14/290,845.89
  6. Step 6: Final answer
    x = 170,214.94

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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.