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Finding the Fourth Proportional to 637.91, 957.75 and 329.99

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Solution

The fourth proportional to 637.91, 957.75 and 329.99 is: 495.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    637.91 : 957.75 = 329.99 : x
  2. Step 2: Convert to fraction form
    637.91/957.75 = 329.99/x
  3. Step 3: Cross multiply
    637.91x = 957.75 × 329.99
  4. Step 4: Simplify right side
    637.91x = 316,047.92
  5. Step 5: Solve for x
    x = 316,047.92/637.91
  6. Step 6: Final answer
    x = 495.44

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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.