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Finding the Fourth Proportional to 503.17, 693.73 and 371.95

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Solution

The fourth proportional to 503.17, 693.73 and 371.95 is: 512.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    503.17 : 693.73 = 371.95 : x
  2. Step 2: Convert to fraction form
    503.17/693.73 = 371.95/x
  3. Step 3: Cross multiply
    503.17x = 693.73 × 371.95
  4. Step 4: Simplify right side
    503.17x = 258,032.87
  5. Step 5: Solve for x
    x = 258,032.87/503.17
  6. Step 6: Final answer
    x = 512.81

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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.