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Finding the Fourth Proportional to 505.36, 695.48 and 453.52

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Solution

The fourth proportional to 505.36, 695.48 and 453.52 is: 624.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    505.36 : 695.48 = 453.52 : x
  2. Step 2: Convert to fraction form
    505.36/695.48 = 453.52/x
  3. Step 3: Cross multiply
    505.36x = 695.48 × 453.52
  4. Step 4: Simplify right side
    505.36x = 315,414.09
  5. Step 5: Solve for x
    x = 315,414.09/505.36
  6. Step 6: Final answer
    x = 624.14

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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.