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Finding the Fourth Proportional to 495.26, 742.86 and 130.04

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Solution

The fourth proportional to 495.26, 742.86 and 130.04 is: 195.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    495.26 : 742.86 = 130.04 : x
  2. Step 2: Convert to fraction form
    495.26/742.86 = 130.04/x
  3. Step 3: Cross multiply
    495.26x = 742.86 × 130.04
  4. Step 4: Simplify right side
    495.26x = 96,601.51
  5. Step 5: Solve for x
    x = 96,601.51/495.26
  6. Step 6: Final answer
    x = 195.05

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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.