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Finding the Fourth Proportional to 632.02, 872.22 and 476.50

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Solution

The fourth proportional to 632.02, 872.22 and 476.50 is: 657.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    632.02 : 872.22 = 476.50 : x
  2. Step 2: Convert to fraction form
    632.02/872.22 = 476.50/x
  3. Step 3: Cross multiply
    632.02x = 872.22 × 476.50
  4. Step 4: Simplify right side
    632.02x = 415,612.83
  5. Step 5: Solve for x
    x = 415,612.83/632.02
  6. Step 6: Final answer
    x = 657.59

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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.