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Finding the Fourth Proportional to 364.92, 503.40 and 299.28

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Solution

The fourth proportional to 364.92, 503.40 and 299.28 is: 412.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    364.92 : 503.40 = 299.28 : x
  2. Step 2: Convert to fraction form
    364.92/503.40 = 299.28/x
  3. Step 3: Cross multiply
    364.92x = 503.40 × 299.28
  4. Step 4: Simplify right side
    364.92x = 150,657.55
  5. Step 5: Solve for x
    x = 150,657.55/364.92
  6. Step 6: Final answer
    x = 412.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.