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Finding the Fourth Proportional to 573.19, 859.82 and 342.19

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Solution

The fourth proportional to 573.19, 859.82 and 342.19 is: 513.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    573.19 : 859.82 = 342.19 : x
  2. Step 2: Convert to fraction form
    573.19/859.82 = 342.19/x
  3. Step 3: Cross multiply
    573.19x = 859.82 × 342.19
  4. Step 4: Simplify right side
    573.19x = 294,220.09
  5. Step 5: Solve for x
    x = 294,220.09/573.19
  6. Step 6: Final answer
    x = 513.30

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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.