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Finding the Fourth Proportional to 364.03, 545.54 and 272.50

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Solution

The fourth proportional to 364.03, 545.54 and 272.50 is: 408.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    364.03 : 545.54 = 272.50 : x
  2. Step 2: Convert to fraction form
    364.03/545.54 = 272.50/x
  3. Step 3: Cross multiply
    364.03x = 545.54 × 272.50
  4. Step 4: Simplify right side
    364.03x = 148,656.92
  5. Step 5: Solve for x
    x = 148,656.92/364.03
  6. Step 6: Final answer
    x = 408.37

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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.