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Finding the Fourth Proportional to 450.66, 677.61 and 369.66

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Solution

The fourth proportional to 450.66, 677.61 and 369.66 is: 555.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    450.66 : 677.61 = 369.66 : x
  2. Step 2: Convert to fraction form
    450.66/677.61 = 369.66/x
  3. Step 3: Cross multiply
    450.66x = 677.61 × 369.66
  4. Step 4: Simplify right side
    450.66x = 250,485.31
  5. Step 5: Solve for x
    x = 250,485.31/450.66
  6. Step 6: Final answer
    x = 555.82

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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.