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Finding the Fourth Proportional to 302.60, 454.05 and 148.34

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Solution

The fourth proportional to 302.60, 454.05 and 148.34 is: 222.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    302.60 : 454.05 = 148.34 : x
  2. Step 2: Convert to fraction form
    302.60/454.05 = 148.34/x
  3. Step 3: Cross multiply
    302.60x = 454.05 × 148.34
  4. Step 4: Simplify right side
    302.60x = 67,354.91
  5. Step 5: Solve for x
    x = 67,354.91/302.60
  6. Step 6: Final answer
    x = 222.59

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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.