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Finding the Fourth Proportional to 525.11, 724.52 and 292.23

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Solution

The fourth proportional to 525.11, 724.52 and 292.23 is: 403.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    525.11 : 724.52 = 292.23 : x
  2. Step 2: Convert to fraction form
    525.11/724.52 = 292.23/x
  3. Step 3: Cross multiply
    525.11x = 724.52 × 292.23
  4. Step 4: Simplify right side
    525.11x = 211,725.02
  5. Step 5: Solve for x
    x = 211,725.02/525.11
  6. Step 6: Final answer
    x = 403.21

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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.