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Finding the Fourth Proportional to 331,091.30, 495,962.86 and 303,504.32

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Solution

The fourth proportional to 331,091.30, 495,962.86 and 303,504.32 is: 454,638.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,091.30 : 495,962.86 = 303,504.32 : x
  2. Step 2: Convert to fraction form
    331,091.30/495,962.86 = 303,504.32/x
  3. Step 3: Cross multiply
    331,091.30x = 495,962.86 × 303,504.32
  4. Step 4: Simplify right side
    331,091.30x = 150,526,870,569.56
  5. Step 5: Solve for x
    x = 150,526,870,569.56/331,091.30
  6. Step 6: Final answer
    x = 454,638.56

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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.