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Finding the Fourth Proportional to 363.50, 545.06 and 157.79

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Solution

The fourth proportional to 363.50, 545.06 and 157.79 is: 236.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    363.50 : 545.06 = 157.79 : x
  2. Step 2: Convert to fraction form
    363.50/545.06 = 157.79/x
  3. Step 3: Cross multiply
    363.50x = 545.06 × 157.79
  4. Step 4: Simplify right side
    363.50x = 86,005.02
  5. Step 5: Solve for x
    x = 86,005.02/363.50
  6. Step 6: Final answer
    x = 236.60

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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.