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Finding the Fourth Proportional to 628.51, 941.16 and 492.27

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Solution

The fourth proportional to 628.51, 941.16 and 492.27 is: 737.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    628.51 : 941.16 = 492.27 : x
  2. Step 2: Convert to fraction form
    628.51/941.16 = 492.27/x
  3. Step 3: Cross multiply
    628.51x = 941.16 × 492.27
  4. Step 4: Simplify right side
    628.51x = 463,304.83
  5. Step 5: Solve for x
    x = 463,304.83/628.51
  6. Step 6: Final answer
    x = 737.15

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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.