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Finding the Fourth Proportional to 331,330.40, 495,829.20 and 303,336.80

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Solution

The fourth proportional to 331,330.40, 495,829.20 and 303,336.80 is: 453,937.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,330.40 : 495,829.20 = 303,336.80 : x
  2. Step 2: Convert to fraction form
    331,330.40/495,829.20 = 303,336.80/x
  3. Step 3: Cross multiply
    331,330.40x = 495,829.20 × 303,336.80
  4. Step 4: Simplify right side
    331,330.40x = 150,403,242,874.56
  5. Step 5: Solve for x
    x = 150,403,242,874.56/331,330.40
  6. Step 6: Final answer
    x = 453,937.35

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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.