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Finding the Fourth Proportional to 242.77, 365.90 and 229.58

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Solution

The fourth proportional to 242.77, 365.90 and 229.58 is: 346.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    242.77 : 365.90 = 229.58 : x
  2. Step 2: Convert to fraction form
    242.77/365.90 = 229.58/x
  3. Step 3: Cross multiply
    242.77x = 365.90 × 229.58
  4. Step 4: Simplify right side
    242.77x = 84,002.07
  5. Step 5: Solve for x
    x = 84,002.07/242.77
  6. Step 6: Final answer
    x = 346.01

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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.