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Finding the Fourth Proportional to 517.04, 774.48 and 299.60

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Solution

The fourth proportional to 517.04, 774.48 and 299.60 is: 448.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    517.04 : 774.48 = 299.60 : x
  2. Step 2: Convert to fraction form
    517.04/774.48 = 299.60/x
  3. Step 3: Cross multiply
    517.04x = 774.48 × 299.60
  4. Step 4: Simplify right side
    517.04x = 232,034.21
  5. Step 5: Solve for x
    x = 232,034.21/517.04
  6. Step 6: Final answer
    x = 448.77

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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.