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Finding the Fourth Proportional to 525.09, 724.67 and 304.03

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Solution

The fourth proportional to 525.09, 724.67 and 304.03 is: 419.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    525.09 : 724.67 = 304.03 : x
  2. Step 2: Convert to fraction form
    525.09/724.67 = 304.03/x
  3. Step 3: Cross multiply
    525.09x = 724.67 × 304.03
  4. Step 4: Simplify right side
    525.09x = 220,318.56
  5. Step 5: Solve for x
    x = 220,318.56/525.09
  6. Step 6: Final answer
    x = 419.58

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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.