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Finding the Fourth Proportional to 573.66, 859.41 and 285.30

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Solution

The fourth proportional to 573.66, 859.41 and 285.30 is: 427.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    573.66 : 859.41 = 285.30 : x
  2. Step 2: Convert to fraction form
    573.66/859.41 = 285.30/x
  3. Step 3: Cross multiply
    573.66x = 859.41 × 285.30
  4. Step 4: Simplify right side
    573.66x = 245,189.67
  5. Step 5: Solve for x
    x = 245,189.67/573.66
  6. Step 6: Final answer
    x = 427.41

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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.