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Finding the Fourth Proportional to 555.99, 833.38 and 190.28

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Solution

The fourth proportional to 555.99, 833.38 and 190.28 is: 285.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    555.99 : 833.38 = 190.28 : x
  2. Step 2: Convert to fraction form
    555.99/833.38 = 190.28/x
  3. Step 3: Cross multiply
    555.99x = 833.38 × 190.28
  4. Step 4: Simplify right side
    555.99x = 158,575.55
  5. Step 5: Solve for x
    x = 158,575.55/555.99
  6. Step 6: Final answer
    x = 285.21

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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.