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Finding the Fourth Proportional to 264.42, 364.87 and 153.92

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Solution

The fourth proportional to 264.42, 364.87 and 153.92 is: 212.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    264.42 : 364.87 = 153.92 : x
  2. Step 2: Convert to fraction form
    264.42/364.87 = 153.92/x
  3. Step 3: Cross multiply
    264.42x = 364.87 × 153.92
  4. Step 4: Simplify right side
    264.42x = 56,158.20
  5. Step 5: Solve for x
    x = 56,158.20/264.42
  6. Step 6: Final answer
    x = 212.38

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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.