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Finding the Fourth Proportional to 331,090.30, 495,961.36 and 303,503.32

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Solution

The fourth proportional to 331,090.30, 495,961.36 and 303,503.32 is: 454,637.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,090.30 : 495,961.36 = 303,503.32 : x
  2. Step 2: Convert to fraction form
    331,090.30/495,961.36 = 303,503.32/x
  3. Step 3: Cross multiply
    331,090.30x = 495,961.36 × 303,503.32
  4. Step 4: Simplify right side
    331,090.30x = 150,525,919,351.72
  5. Step 5: Solve for x
    x = 150,525,919,351.72/331,090.30
  6. Step 6: Final answer
    x = 454,637.06

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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.