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Finding the Fourth Proportional to 264.14, 364.47 and 242.90

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Solution

The fourth proportional to 264.14, 364.47 and 242.90 is: 335.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    264.14 : 364.47 = 242.90 : x
  2. Step 2: Convert to fraction form
    264.14/364.47 = 242.90/x
  3. Step 3: Cross multiply
    264.14x = 364.47 × 242.90
  4. Step 4: Simplify right side
    264.14x = 88,529.76
  5. Step 5: Solve for x
    x = 88,529.76/264.14
  6. Step 6: Final answer
    x = 335.16

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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.