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Finding the Fourth Proportional to 482.50, 665.70 and 295.94

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Solution

The fourth proportional to 482.50, 665.70 and 295.94 is: 408.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    482.50 : 665.70 = 295.94 : x
  2. Step 2: Convert to fraction form
    482.50/665.70 = 295.94/x
  3. Step 3: Cross multiply
    482.50x = 665.70 × 295.94
  4. Step 4: Simplify right side
    482.50x = 197,007.26
  5. Step 5: Solve for x
    x = 197,007.26/482.50
  6. Step 6: Final answer
    x = 408.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.