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Finding the Fourth Proportional to 273,749.09, 411,352.64 and 147,486.29

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Solution

The fourth proportional to 273,749.09, 411,352.64 and 147,486.29 is: 221,622.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,749.09 : 411,352.64 = 147,486.29 : x
  2. Step 2: Convert to fraction form
    273,749.09/411,352.64 = 147,486.29/x
  3. Step 3: Cross multiply
    273,749.09x = 411,352.64 × 147,486.29
  4. Step 4: Simplify right side
    273,749.09x = 60,668,874,755.31
  5. Step 5: Solve for x
    x = 60,668,874,755.31/273,749.09
  6. Step 6: Final answer
    x = 221,622.20

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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.