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Finding the Fourth Proportional to 524.43, 785.96 and 215.93

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Solution

The fourth proportional to 524.43, 785.96 and 215.93 is: 323.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    524.43 : 785.96 = 215.93 : x
  2. Step 2: Convert to fraction form
    524.43/785.96 = 215.93/x
  3. Step 3: Cross multiply
    524.43x = 785.96 × 215.93
  4. Step 4: Simplify right side
    524.43x = 169,712.34
  5. Step 5: Solve for x
    x = 169,712.34/524.43
  6. Step 6: Final answer
    x = 323.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.