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Finding the Fourth Proportional to 467.30, 644.83 and 270.77

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Solution

The fourth proportional to 467.30, 644.83 and 270.77 is: 373.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    467.30 : 644.83 = 270.77 : x
  2. Step 2: Convert to fraction form
    467.30/644.83 = 270.77/x
  3. Step 3: Cross multiply
    467.30x = 644.83 × 270.77
  4. Step 4: Simplify right side
    467.30x = 174,596.72
  5. Step 5: Solve for x
    x = 174,596.72/467.30
  6. Step 6: Final answer
    x = 373.63

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Double scale
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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.