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Finding the Fourth Proportional to 632.74, 873.42 and 370.84

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Solution

The fourth proportional to 632.74, 873.42 and 370.84 is: 511.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    632.74 : 873.42 = 370.84 : x
  2. Step 2: Convert to fraction form
    632.74/873.42 = 370.84/x
  3. Step 3: Cross multiply
    632.74x = 873.42 × 370.84
  4. Step 4: Simplify right side
    632.74x = 323,899.07
  5. Step 5: Solve for x
    x = 323,899.07/632.74
  6. Step 6: Final answer
    x = 511.90

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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.