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Finding the Fourth Proportional to 130.22, 193.93 and 127.95

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Solution

The fourth proportional to 130.22, 193.93 and 127.95 is: 190.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    130.22 : 193.93 = 127.95 : x
  2. Step 2: Convert to fraction form
    130.22/193.93 = 127.95/x
  3. Step 3: Cross multiply
    130.22x = 193.93 × 127.95
  4. Step 4: Simplify right side
    130.22x = 24,813.34
  5. Step 5: Solve for x
    x = 24,813.34/130.22
  6. Step 6: Final answer
    x = 190.55

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.