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Finding the Fourth Proportional to 476.05, 713.12 and 293.80

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Solution

The fourth proportional to 476.05, 713.12 and 293.80 is: 440.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    476.05 : 713.12 = 293.80 : x
  2. Step 2: Convert to fraction form
    476.05/713.12 = 293.80/x
  3. Step 3: Cross multiply
    476.05x = 713.12 × 293.80
  4. Step 4: Simplify right side
    476.05x = 209,511.09
  5. Step 5: Solve for x
    x = 209,511.09/476.05
  6. Step 6: Final answer
    x = 440.11

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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.