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Finding the Fourth Proportional to 628.48, 867.24 and 366.46

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Solution

The fourth proportional to 628.48, 867.24 and 366.46 is: 505.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    628.48 : 867.24 = 366.46 : x
  2. Step 2: Convert to fraction form
    628.48/867.24 = 366.46/x
  3. Step 3: Cross multiply
    628.48x = 867.24 × 366.46
  4. Step 4: Simplify right side
    628.48x = 317,808.77
  5. Step 5: Solve for x
    x = 317,808.77/628.48
  6. Step 6: Final answer
    x = 505.68

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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.