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Finding the Fourth Proportional to 467.15, 700.81 and 207.15

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Solution

The fourth proportional to 467.15, 700.81 and 207.15 is: 310.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    467.15 : 700.81 = 207.15 : x
  2. Step 2: Convert to fraction form
    467.15/700.81 = 207.15/x
  3. Step 3: Cross multiply
    467.15x = 700.81 × 207.15
  4. Step 4: Simplify right side
    467.15x = 145,172.79
  5. Step 5: Solve for x
    x = 145,172.79/467.15
  6. Step 6: Final answer
    x = 310.76

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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.