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Finding the Fourth Proportional to 467.55, 700.79 and 261.81

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Solution

The fourth proportional to 467.55, 700.79 and 261.81 is: 392.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    467.55 : 700.79 = 261.81 : x
  2. Step 2: Convert to fraction form
    467.55/700.79 = 261.81/x
  3. Step 3: Cross multiply
    467.55x = 700.79 × 261.81
  4. Step 4: Simplify right side
    467.55x = 183,472.52
  5. Step 5: Solve for x
    x = 183,472.52/467.55
  6. Step 6: Final answer
    x = 392.41

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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.