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Finding the Fourth Proportional to 465.88, 698.80 and 157.89

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Solution

The fourth proportional to 465.88, 698.80 and 157.89 is: 236.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    465.88 : 698.80 = 157.89 : x
  2. Step 2: Convert to fraction form
    465.88/698.80 = 157.89/x
  3. Step 3: Cross multiply
    465.88x = 698.80 × 157.89
  4. Step 4: Simplify right side
    465.88x = 110,333.53
  5. Step 5: Solve for x
    x = 110,333.53/465.88
  6. Step 6: Final answer
    x = 236.83

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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.