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Finding the Fourth Proportional to 504.28, 695.58 and 329.56

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Solution

The fourth proportional to 504.28, 695.58 and 329.56 is: 454.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    504.28 : 695.58 = 329.56 : x
  2. Step 2: Convert to fraction form
    504.28/695.58 = 329.56/x
  3. Step 3: Cross multiply
    504.28x = 695.58 × 329.56
  4. Step 4: Simplify right side
    504.28x = 229,235.34
  5. Step 5: Solve for x
    x = 229,235.34/504.28
  6. Step 6: Final answer
    x = 454.58

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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.