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Finding the Fourth Proportional to 545.50, 816.47 and 360.46

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Solution

The fourth proportional to 545.50, 816.47 and 360.46 is: 539.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    545.50 : 816.47 = 360.46 : x
  2. Step 2: Convert to fraction form
    545.50/816.47 = 360.46/x
  3. Step 3: Cross multiply
    545.50x = 816.47 × 360.46
  4. Step 4: Simplify right side
    545.50x = 294,298.89
  5. Step 5: Solve for x
    x = 294,298.89/545.50
  6. Step 6: Final answer
    x = 539.51

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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.