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Finding the Fourth Proportional to 572.84, 859.26 and 248.21

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Solution

The fourth proportional to 572.84, 859.26 and 248.21 is: 372.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    572.84 : 859.26 = 248.21 : x
  2. Step 2: Convert to fraction form
    572.84/859.26 = 248.21/x
  3. Step 3: Cross multiply
    572.84x = 859.26 × 248.21
  4. Step 4: Simplify right side
    572.84x = 213,276.92
  5. Step 5: Solve for x
    x = 213,276.92/572.84
  6. Step 6: Final answer
    x = 372.32

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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.