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Finding the Fourth Proportional to 545.61, 816.39 and 336.63

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Solution

The fourth proportional to 545.61, 816.39 and 336.63 is: 503.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    545.61 : 816.39 = 336.63 : x
  2. Step 2: Convert to fraction form
    545.61/816.39 = 336.63/x
  3. Step 3: Cross multiply
    545.61x = 816.39 × 336.63
  4. Step 4: Simplify right side
    545.61x = 274,821.37
  5. Step 5: Solve for x
    x = 274,821.37/545.61
  6. Step 6: Final answer
    x = 503.70

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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.