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Finding the Fourth Proportional to 503.96, 695.22 and 296.84

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Solution

The fourth proportional to 503.96, 695.22 and 296.84 is: 409.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    503.96 : 695.22 = 296.84 : x
  2. Step 2: Convert to fraction form
    503.96/695.22 = 296.84/x
  3. Step 3: Cross multiply
    503.96x = 695.22 × 296.84
  4. Step 4: Simplify right side
    503.96x = 206,369.10
  5. Step 5: Solve for x
    x = 206,369.10/503.96
  6. Step 6: Final answer
    x = 409.50

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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.