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Finding the Fourth Proportional to 331,322.90, 495,817.95 and 303,329.30

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Solution

The fourth proportional to 331,322.90, 495,817.95 and 303,329.30 is: 453,926.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,322.90 : 495,817.95 = 303,329.30 : x
  2. Step 2: Convert to fraction form
    331,322.90/495,817.95 = 303,329.30/x
  3. Step 3: Cross multiply
    331,322.90x = 495,817.95 × 303,329.30
  4. Step 4: Simplify right side
    331,322.90x = 150,396,111,700.94
  5. Step 5: Solve for x
    x = 150,396,111,700.94/331,322.90
  6. Step 6: Final answer
    x = 453,926.10

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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.