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Finding the Fourth Proportional to 525.37, 725.07 and 304.39

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Solution

The fourth proportional to 525.37, 725.07 and 304.39 is: 420.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    525.37 : 725.07 = 304.39 : x
  2. Step 2: Convert to fraction form
    525.37/725.07 = 304.39/x
  3. Step 3: Cross multiply
    525.37x = 725.07 × 304.39
  4. Step 4: Simplify right side
    525.37x = 220,704.06
  5. Step 5: Solve for x
    x = 220,704.06/525.37
  6. Step 6: Final answer
    x = 420.09

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Similar ratio
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1.5x scale

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.