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Finding the Fourth Proportional to 525.96, 726.12 and 351.59

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Solution

The fourth proportional to 525.96, 726.12 and 351.59 is: 485.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    525.96 : 726.12 = 351.59 : x
  2. Step 2: Convert to fraction form
    525.96/726.12 = 351.59/x
  3. Step 3: Cross multiply
    525.96x = 726.12 × 351.59
  4. Step 4: Simplify right side
    525.96x = 255,292.90
  5. Step 5: Solve for x
    x = 255,292.90/525.96
  6. Step 6: Final answer
    x = 485.38

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Double scale
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Similar ratio
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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.