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Finding the Fourth Proportional to 555.55, 833.23 and 144.67

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Solution

The fourth proportional to 555.55, 833.23 and 144.67 is: 216.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    555.55 : 833.23 = 144.67 : x
  2. Step 2: Convert to fraction form
    555.55/833.23 = 144.67/x
  3. Step 3: Cross multiply
    555.55x = 833.23 × 144.67
  4. Step 4: Simplify right side
    555.55x = 120,539.12
  5. Step 5: Solve for x
    x = 120,539.12/555.55
  6. Step 6: Final answer
    x = 216.97

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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.