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Finding the Fourth Proportional to 522.09, 718.92 and 374.46

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Solution

The fourth proportional to 522.09, 718.92 and 374.46 is: 515.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    522.09 : 718.92 = 374.46 : x
  2. Step 2: Convert to fraction form
    522.09/718.92 = 374.46/x
  3. Step 3: Cross multiply
    522.09x = 718.92 × 374.46
  4. Step 4: Simplify right side
    522.09x = 269,206.78
  5. Step 5: Solve for x
    x = 269,206.78/522.09
  6. Step 6: Final answer
    x = 515.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.