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Finding the Fourth Proportional to 264.32, 364.83 and 153.79

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Solution

The fourth proportional to 264.32, 364.83 and 153.79 is: 212.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    264.32 : 364.83 = 153.79 : x
  2. Step 2: Convert to fraction form
    264.32/364.83 = 153.79/x
  3. Step 3: Cross multiply
    264.32x = 364.83 × 153.79
  4. Step 4: Simplify right side
    264.32x = 56,105.72
  5. Step 5: Solve for x
    x = 56,105.72/264.32
  6. Step 6: Final answer
    x = 212.27

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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.