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Finding the Fourth Proportional to 525.35, 724.97 and 304.34

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Solution

The fourth proportional to 525.35, 724.97 and 304.34 is: 419.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    525.35 : 724.97 = 304.34 : x
  2. Step 2: Convert to fraction form
    525.35/724.97 = 304.34/x
  3. Step 3: Cross multiply
    525.35x = 724.97 × 304.34
  4. Step 4: Simplify right side
    525.35x = 220,634.51
  5. Step 5: Solve for x
    x = 220,634.51/525.35
  6. Step 6: Final answer
    x = 419.97

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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.