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Finding the Fourth Proportional to 331,323.40, 495,818.70 and 303,329.80

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Solution

The fourth proportional to 331,323.40, 495,818.70 and 303,329.80 is: 453,926.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,323.40 : 495,818.70 = 303,329.80 : x
  2. Step 2: Convert to fraction form
    331,323.40/495,818.70 = 303,329.80/x
  3. Step 3: Cross multiply
    331,323.40x = 495,818.70 × 303,329.80
  4. Step 4: Simplify right side
    331,323.40x = 150,396,587,107.26
  5. Step 5: Solve for x
    x = 150,396,587,107.26/331,323.40
  6. Step 6: Final answer
    x = 453,926.85

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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.