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Finding the Fourth Proportional to 366.58, 505.53 and 279.22

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Solution

The fourth proportional to 366.58, 505.53 and 279.22 is: 385.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    366.58 : 505.53 = 279.22 : x
  2. Step 2: Convert to fraction form
    366.58/505.53 = 279.22/x
  3. Step 3: Cross multiply
    366.58x = 505.53 × 279.22
  4. Step 4: Simplify right side
    366.58x = 141,154.09
  5. Step 5: Solve for x
    x = 141,154.09/366.58
  6. Step 6: Final answer
    x = 385.06

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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.