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Finding the Fourth Proportional to 351,758.70, 485,647.11 and 271,033.02

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Solution

The fourth proportional to 351,758.70, 485,647.11 and 271,033.02 is: 374,195.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,758.70 : 485,647.11 = 271,033.02 : x
  2. Step 2: Convert to fraction form
    351,758.70/485,647.11 = 271,033.02/x
  3. Step 3: Cross multiply
    351,758.70x = 485,647.11 × 271,033.02
  4. Step 4: Simplify right side
    351,758.70x = 131,626,402,877.57
  5. Step 5: Solve for x
    x = 131,626,402,877.57/351,758.70
  6. Step 6: Final answer
    x = 374,195.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.