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Finding the Fourth Proportional to 525.84, 725.67 and 304.86

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Solution

The fourth proportional to 525.84, 725.67 and 304.86 is: 420.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    525.84 : 725.67 = 304.86 : x
  2. Step 2: Convert to fraction form
    525.84/725.67 = 304.86/x
  3. Step 3: Cross multiply
    525.84x = 725.67 × 304.86
  4. Step 4: Simplify right side
    525.84x = 221,227.76
  5. Step 5: Solve for x
    x = 221,227.76/525.84
  6. Step 6: Final answer
    x = 420.71

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.