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Finding the Fourth Proportional to 466.19, 643.19 and 300.11

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Solution

The fourth proportional to 466.19, 643.19 and 300.11 is: 414.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    466.19 : 643.19 = 300.11 : x
  2. Step 2: Convert to fraction form
    466.19/643.19 = 300.11/x
  3. Step 3: Cross multiply
    466.19x = 643.19 × 300.11
  4. Step 4: Simplify right side
    466.19x = 193,023.03
  5. Step 5: Solve for x
    x = 193,023.03/466.19
  6. Step 6: Final answer
    x = 414.05

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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.