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Finding the Fourth Proportional to 302.84, 454.71 and 181.64

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Solution

The fourth proportional to 302.84, 454.71 and 181.64 is: 272.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    302.84 : 454.71 = 181.64 : x
  2. Step 2: Convert to fraction form
    302.84/454.71 = 181.64/x
  3. Step 3: Cross multiply
    302.84x = 454.71 × 181.64
  4. Step 4: Simplify right side
    302.84x = 82,595.34
  5. Step 5: Solve for x
    x = 82,595.34/302.84
  6. Step 6: Final answer
    x = 272.74

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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.