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Finding the Fourth Proportional to 556.18, 833.55 and 263.50

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Solution

The fourth proportional to 556.18, 833.55 and 263.50 is: 394.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    556.18 : 833.55 = 263.50 : x
  2. Step 2: Convert to fraction form
    556.18/833.55 = 263.50/x
  3. Step 3: Cross multiply
    556.18x = 833.55 × 263.50
  4. Step 4: Simplify right side
    556.18x = 219,640.43
  5. Step 5: Solve for x
    x = 219,640.43/556.18
  6. Step 6: Final answer
    x = 394.91

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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.