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Finding the Fourth Proportional to 555.72, 833.58 and 190.50

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Solution

The fourth proportional to 555.72, 833.58 and 190.50 is: 285.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    555.72 : 833.58 = 190.50 : x
  2. Step 2: Convert to fraction form
    555.72/833.58 = 190.50/x
  3. Step 3: Cross multiply
    555.72x = 833.58 × 190.50
  4. Step 4: Simplify right side
    555.72x = 158,796.99
  5. Step 5: Solve for x
    x = 158,796.99/555.72
  6. Step 6: Final answer
    x = 285.75

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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.