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Finding the Fourth Proportional to 395.04, 545.09 and 237.63

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Solution

The fourth proportional to 395.04, 545.09 and 237.63 is: 327.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    395.04 : 545.09 = 237.63 : x
  2. Step 2: Convert to fraction form
    395.04/545.09 = 237.63/x
  3. Step 3: Cross multiply
    395.04x = 545.09 × 237.63
  4. Step 4: Simplify right side
    395.04x = 129,528.55
  5. Step 5: Solve for x
    x = 129,528.55/395.04
  6. Step 6: Final answer
    x = 327.89

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.