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Finding the Fourth Proportional to 452.00, 677.57 and 208.67

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Solution

The fourth proportional to 452.00, 677.57 and 208.67 is: 312.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    452.00 : 677.57 = 208.67 : x
  2. Step 2: Convert to fraction form
    452.00/677.57 = 208.67/x
  3. Step 3: Cross multiply
    452.00x = 677.57 × 208.67
  4. Step 4: Simplify right side
    452.00x = 141,384.10
  5. Step 5: Solve for x
    x = 141,384.10/452.00
  6. Step 6: Final answer
    x = 312.79

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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.