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Finding the Fourth Proportional to 503.87, 695.36 and 282.82

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Solution

The fourth proportional to 503.87, 695.36 and 282.82 is: 390.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    503.87 : 695.36 = 282.82 : x
  2. Step 2: Convert to fraction form
    503.87/695.36 = 282.82/x
  3. Step 3: Cross multiply
    503.87x = 695.36 × 282.82
  4. Step 4: Simplify right side
    503.87x = 196,660.30
  5. Step 5: Solve for x
    x = 196,660.30/503.87
  6. Step 6: Final answer
    x = 390.30

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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.