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Finding the Fourth Proportional to 555.92, 834 and 190.80

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Solution

The fourth proportional to 555.92, 834 and 190.80 is: 286.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    555.92 : 834 = 190.80 : x
  2. Step 2: Convert to fraction form
    555.92/834 = 190.80/x
  3. Step 3: Cross multiply
    555.92x = 834 × 190.80
  4. Step 4: Simplify right side
    555.92x = 159,127.20
  5. Step 5: Solve for x
    x = 159,127.20/555.92
  6. Step 6: Final answer
    x = 286.24

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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.