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Finding the Fourth Proportional to 364.31, 545.98 and 171.53

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Solution

The fourth proportional to 364.31, 545.98 and 171.53 is: 257.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    364.31 : 545.98 = 171.53 : x
  2. Step 2: Convert to fraction form
    364.31/545.98 = 171.53/x
  3. Step 3: Cross multiply
    364.31x = 545.98 × 171.53
  4. Step 4: Simplify right side
    364.31x = 93,651.95
  5. Step 5: Solve for x
    x = 93,651.95/364.31
  6. Step 6: Final answer
    x = 257.07

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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.