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Finding the Fourth Proportional to 556.13, 833.32 and 281.85

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Solution

The fourth proportional to 556.13, 833.32 and 281.85 is: 422.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    556.13 : 833.32 = 281.85 : x
  2. Step 2: Convert to fraction form
    556.13/833.32 = 281.85/x
  3. Step 3: Cross multiply
    556.13x = 833.32 × 281.85
  4. Step 4: Simplify right side
    556.13x = 234,868.47
  5. Step 5: Solve for x
    x = 234,868.47/556.13
  6. Step 6: Final answer
    x = 422.32

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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.