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Finding the Fourth Proportional to 495.37, 743.09 and 130.16

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Solution

The fourth proportional to 495.37, 743.09 and 130.16 is: 195.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    495.37 : 743.09 = 130.16 : x
  2. Step 2: Convert to fraction form
    495.37/743.09 = 130.16/x
  3. Step 3: Cross multiply
    495.37x = 743.09 × 130.16
  4. Step 4: Simplify right side
    495.37x = 96,722.78
  5. Step 5: Solve for x
    x = 96,722.78/495.37
  6. Step 6: Final answer
    x = 195.25

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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.