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Finding the Fourth Proportional to 220.17, 302.90 and 184.60

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Solution

The fourth proportional to 220.17, 302.90 and 184.60 is: 253.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    220.17 : 302.90 = 184.60 : x
  2. Step 2: Convert to fraction form
    220.17/302.90 = 184.60/x
  3. Step 3: Cross multiply
    220.17x = 302.90 × 184.60
  4. Step 4: Simplify right side
    220.17x = 55,915.34
  5. Step 5: Solve for x
    x = 55,915.34/220.17
  6. Step 6: Final answer
    x = 253.96

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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.