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Finding the Fourth Proportional to 403.45, 603.95 and 364.94

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Solution

The fourth proportional to 403.45, 603.95 and 364.94 is: 546.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    403.45 : 603.95 = 364.94 : x
  2. Step 2: Convert to fraction form
    403.45/603.95 = 364.94/x
  3. Step 3: Cross multiply
    403.45x = 603.95 × 364.94
  4. Step 4: Simplify right side
    403.45x = 220,402.93
  5. Step 5: Solve for x
    x = 220,402.93/403.45
  6. Step 6: Final answer
    x = 546.30

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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.