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Finding the Fourth Proportional to 477.99, 717.44 and 295.74

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Solution

The fourth proportional to 477.99, 717.44 and 295.74 is: 443.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    477.99 : 717.44 = 295.74 : x
  2. Step 2: Convert to fraction form
    477.99/717.44 = 295.74/x
  3. Step 3: Cross multiply
    477.99x = 717.44 × 295.74
  4. Step 4: Simplify right side
    477.99x = 212,174.23
  5. Step 5: Solve for x
    x = 212,174.23/477.99
  6. Step 6: Final answer
    x = 443.89

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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.