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Finding the Fourth Proportional to 556.06, 833.84 and 321.76

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Solution

The fourth proportional to 556.06, 833.84 and 321.76 is: 482.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    556.06 : 833.84 = 321.76 : x
  2. Step 2: Convert to fraction form
    556.06/833.84 = 321.76/x
  3. Step 3: Cross multiply
    556.06x = 833.84 × 321.76
  4. Step 4: Simplify right side
    556.06x = 268,296.36
  5. Step 5: Solve for x
    x = 268,296.36/556.06
  6. Step 6: Final answer
    x = 482.50

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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.