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Finding the Fourth Proportional to 302.04, 451.19 and 214.68

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Solution

The fourth proportional to 302.04, 451.19 and 214.68 is: 320.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    302.04 : 451.19 = 214.68 : x
  2. Step 2: Convert to fraction form
    302.04/451.19 = 214.68/x
  3. Step 3: Cross multiply
    302.04x = 451.19 × 214.68
  4. Step 4: Simplify right side
    302.04x = 96,860.40
  5. Step 5: Solve for x
    x = 96,860.40/302.04
  6. Step 6: Final answer
    x = 320.69

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.