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Finding the Fourth Proportional to 183.35, 253.09 and 124.30

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Solution

The fourth proportional to 183.35, 253.09 and 124.30 is: 171.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    183.35 : 253.09 = 124.30 : x
  2. Step 2: Convert to fraction form
    183.35/253.09 = 124.30/x
  3. Step 3: Cross multiply
    183.35x = 253.09 × 124.30
  4. Step 4: Simplify right side
    183.35x = 31,459.09
  5. Step 5: Solve for x
    x = 31,459.09/183.35
  6. Step 6: Final answer
    x = 171.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.