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Finding the Fourth Proportional to 301.80, 452.70 and 296.40

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Solution

The fourth proportional to 301.80, 452.70 and 296.40 is: 444.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    301.80 : 452.70 = 296.40 : x
  2. Step 2: Convert to fraction form
    301.80/452.70 = 296.40/x
  3. Step 3: Cross multiply
    301.80x = 452.70 × 296.40
  4. Step 4: Simplify right side
    301.80x = 134,180.28
  5. Step 5: Solve for x
    x = 134,180.28/301.80
  6. Step 6: Final answer
    x = 444.60

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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.