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Finding the Fourth Proportional to 665.01, 996.71 and 556.47

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Solution

The fourth proportional to 665.01, 996.71 and 556.47 is: 834.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    665.01 : 996.71 = 556.47 : x
  2. Step 2: Convert to fraction form
    665.01/996.71 = 556.47/x
  3. Step 3: Cross multiply
    665.01x = 996.71 × 556.47
  4. Step 4: Simplify right side
    665.01x = 554,636.43
  5. Step 5: Solve for x
    x = 554,636.43/665.01
  6. Step 6: Final answer
    x = 834.03

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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.