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Finding the Fourth Proportional to 503.64, 695.25 and 304.56

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Solution

The fourth proportional to 503.64, 695.25 and 304.56 is: 420.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    503.64 : 695.25 = 304.56 : x
  2. Step 2: Convert to fraction form
    503.64/695.25 = 304.56/x
  3. Step 3: Cross multiply
    503.64x = 695.25 × 304.56
  4. Step 4: Simplify right side
    503.64x = 211,745.34
  5. Step 5: Solve for x
    x = 211,745.34/503.64
  6. Step 6: Final answer
    x = 420.43

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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.