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Finding the Fourth Proportional to 525.08, 724.48 and 300.95

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Solution

The fourth proportional to 525.08, 724.48 and 300.95 is: 415.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    525.08 : 724.48 = 300.95 : x
  2. Step 2: Convert to fraction form
    525.08/724.48 = 300.95/x
  3. Step 3: Cross multiply
    525.08x = 724.48 × 300.95
  4. Step 4: Simplify right side
    525.08x = 218,033.31
  5. Step 5: Solve for x
    x = 218,033.31/525.08
  6. Step 6: Final answer
    x = 415.24

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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.