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Finding the Fourth Proportional to 290,804.85, 436,028.67 and 113,104.76

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Solution

The fourth proportional to 290,804.85, 436,028.67 and 113,104.76 is: 169,587.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,804.85 : 436,028.67 = 113,104.76 : x
  2. Step 2: Convert to fraction form
    290,804.85/436,028.67 = 113,104.76/x
  3. Step 3: Cross multiply
    290,804.85x = 436,028.67 × 113,104.76
  4. Step 4: Simplify right side
    290,804.85x = 49,316,915,893.33
  5. Step 5: Solve for x
    x = 49,316,915,893.33/290,804.85
  6. Step 6: Final answer
    x = 169,587.67

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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.