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Finding the Fourth Proportional to 452.34, 677.52 and 289.62

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Solution

The fourth proportional to 452.34, 677.52 and 289.62 is: 433.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    452.34 : 677.52 = 289.62 : x
  2. Step 2: Convert to fraction form
    452.34/677.52 = 289.62/x
  3. Step 3: Cross multiply
    452.34x = 677.52 × 289.62
  4. Step 4: Simplify right side
    452.34x = 196,223.34
  5. Step 5: Solve for x
    x = 196,223.34/452.34
  6. Step 6: Final answer
    x = 433.80

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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.