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Finding the Fourth Proportional to 302.33, 417.35 and 219.51

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Solution

The fourth proportional to 302.33, 417.35 and 219.51 is: 303.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    302.33 : 417.35 = 219.51 : x
  2. Step 2: Convert to fraction form
    302.33/417.35 = 219.51/x
  3. Step 3: Cross multiply
    302.33x = 417.35 × 219.51
  4. Step 4: Simplify right side
    302.33x = 91,613.05
  5. Step 5: Solve for x
    x = 91,613.05/302.33
  6. Step 6: Final answer
    x = 303.02

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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.