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Finding the Fourth Proportional to 273,204.40, 409,806.60 and 265,428.40

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Solution

The fourth proportional to 273,204.40, 409,806.60 and 265,428.40 is: 398,142.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,204.40 : 409,806.60 = 265,428.40 : x
  2. Step 2: Convert to fraction form
    273,204.40/409,806.60 = 265,428.40/x
  3. Step 3: Cross multiply
    273,204.40x = 409,806.60 × 265,428.40
  4. Step 4: Simplify right side
    273,204.40x = 108,774,310,147.44
  5. Step 5: Solve for x
    x = 108,774,310,147.44/273,204.40
  6. Step 6: Final answer
    x = 398,142.60

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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.