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Finding the Fourth Proportional to 364.38, 545.88 and 202.20

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Solution

The fourth proportional to 364.38, 545.88 and 202.20 is: 302.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    364.38 : 545.88 = 202.20 : x
  2. Step 2: Convert to fraction form
    364.38/545.88 = 202.20/x
  3. Step 3: Cross multiply
    364.38x = 545.88 × 202.20
  4. Step 4: Simplify right side
    364.38x = 110,376.94
  5. Step 5: Solve for x
    x = 110,376.94/364.38
  6. Step 6: Final answer
    x = 302.92

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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.