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Finding the Fourth Proportional to 183.58, 275.02 and 140.31

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Solution

The fourth proportional to 183.58, 275.02 and 140.31 is: 210.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    183.58 : 275.02 = 140.31 : x
  2. Step 2: Convert to fraction form
    183.58/275.02 = 140.31/x
  3. Step 3: Cross multiply
    183.58x = 275.02 × 140.31
  4. Step 4: Simplify right side
    183.58x = 38,588.06
  5. Step 5: Solve for x
    x = 38,588.06/183.58
  6. Step 6: Final answer
    x = 210.20

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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.