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Finding the Fourth Proportional to 301, 451.38 and 146.87

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Solution

The fourth proportional to 301, 451.38 and 146.87 is: 220.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    301 : 451.38 = 146.87 : x
  2. Step 2: Convert to fraction form
    301/451.38 = 146.87/x
  3. Step 3: Cross multiply
    301x = 451.38 × 146.87
  4. Step 4: Simplify right side
    301x = 66,294.18
  5. Step 5: Solve for x
    x = 66,294.18/301
  6. Step 6: Final answer
    x = 220.25

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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.