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Finding the Fourth Proportional to 273,319.68, 409,959.36 and 131,266.56

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Solution

The fourth proportional to 273,319.68, 409,959.36 and 131,266.56 is: 196,890.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,319.68 : 409,959.36 = 131,266.56 : x
  2. Step 2: Convert to fraction form
    273,319.68/409,959.36 = 131,266.56/x
  3. Step 3: Cross multiply
    273,319.68x = 409,959.36 × 131,266.56
  4. Step 4: Simplify right side
    273,319.68x = 53,813,954,927.00
  5. Step 5: Solve for x
    x = 53,813,954,927.00/273,319.68
  6. Step 6: Final answer
    x = 196,890.16

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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.