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Finding the Fourth Proportional to 503.77, 695.02 and 329.21

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Solution

The fourth proportional to 503.77, 695.02 and 329.21 is: 454.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    503.77 : 695.02 = 329.21 : x
  2. Step 2: Convert to fraction form
    503.77/695.02 = 329.21/x
  3. Step 3: Cross multiply
    503.77x = 695.02 × 329.21
  4. Step 4: Simplify right side
    503.77x = 228,806.71
  5. Step 5: Solve for x
    x = 228,806.71/503.77
  6. Step 6: Final answer
    x = 454.19

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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.