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Finding the Fourth Proportional to 572.35, 857.99 and 298.62

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Solution

The fourth proportional to 572.35, 857.99 and 298.62 is: 447.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    572.35 : 857.99 = 298.62 : x
  2. Step 2: Convert to fraction form
    572.35/857.99 = 298.62/x
  3. Step 3: Cross multiply
    572.35x = 857.99 × 298.62
  4. Step 4: Simplify right side
    572.35x = 256,213.72
  5. Step 5: Solve for x
    x = 256,213.72/572.35
  6. Step 6: Final answer
    x = 447.65

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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.