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Finding the Fourth Proportional to 242.68, 364.23 and 204.58

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Solution

The fourth proportional to 242.68, 364.23 and 204.58 is: 307.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    242.68 : 364.23 = 204.58 : x
  2. Step 2: Convert to fraction form
    242.68/364.23 = 204.58/x
  3. Step 3: Cross multiply
    242.68x = 364.23 × 204.58
  4. Step 4: Simplify right side
    242.68x = 74,514.17
  5. Step 5: Solve for x
    x = 74,514.17/242.68
  6. Step 6: Final answer
    x = 307.05

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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.