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Finding the Fourth Proportional to 556.92, 835.50 and 210.25

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Solution

The fourth proportional to 556.92, 835.50 and 210.25 is: 315.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    556.92 : 835.50 = 210.25 : x
  2. Step 2: Convert to fraction form
    556.92/835.50 = 210.25/x
  3. Step 3: Cross multiply
    556.92x = 835.50 × 210.25
  4. Step 4: Simplify right side
    556.92x = 175,664.02
  5. Step 5: Solve for x
    x = 175,664.02/556.92
  6. Step 6: Final answer
    x = 315.42

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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.