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Finding the Fourth Proportional to 440.18, 663.30 and 364.84

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Solution

The fourth proportional to 440.18, 663.30 and 364.84 is: 549.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    440.18 : 663.30 = 364.84 : x
  2. Step 2: Convert to fraction form
    440.18/663.30 = 364.84/x
  3. Step 3: Cross multiply
    440.18x = 663.30 × 364.84
  4. Step 4: Simplify right side
    440.18x = 241,996.71
  5. Step 5: Solve for x
    x = 241,996.71/440.18
  6. Step 6: Final answer
    x = 549.76

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.