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Finding the Fourth Proportional to 556.68, 833.66 and 325.06

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Solution

The fourth proportional to 556.68, 833.66 and 325.06 is: 486.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    556.68 : 833.66 = 325.06 : x
  2. Step 2: Convert to fraction form
    556.68/833.66 = 325.06/x
  3. Step 3: Cross multiply
    556.68x = 833.66 × 325.06
  4. Step 4: Simplify right side
    556.68x = 270,989.52
  5. Step 5: Solve for x
    x = 270,989.52/556.68
  6. Step 6: Final answer
    x = 486.80

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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.