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Finding the Fourth Proportional to 545.59, 817.44 and 325.97

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Solution

The fourth proportional to 545.59, 817.44 and 325.97 is: 488.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    545.59 : 817.44 = 325.97 : x
  2. Step 2: Convert to fraction form
    545.59/817.44 = 325.97/x
  3. Step 3: Cross multiply
    545.59x = 817.44 × 325.97
  4. Step 4: Simplify right side
    545.59x = 266,465.10
  5. Step 5: Solve for x
    x = 266,465.10/545.59
  6. Step 6: Final answer
    x = 488.40

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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.