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Finding the Fourth Proportional to 563.19, 843.45 and 340.92

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Solution

The fourth proportional to 563.19, 843.45 and 340.92 is: 510.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    563.19 : 843.45 = 340.92 : x
  2. Step 2: Convert to fraction form
    563.19/843.45 = 340.92/x
  3. Step 3: Cross multiply
    563.19x = 843.45 × 340.92
  4. Step 4: Simplify right side
    563.19x = 287,548.97
  5. Step 5: Solve for x
    x = 287,548.97/563.19
  6. Step 6: Final answer
    x = 510.57

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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.