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Finding the Fourth Proportional to 556.40, 834.36 and 282.32

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Solution

The fourth proportional to 556.40, 834.36 and 282.32 is: 423.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    556.40 : 834.36 = 282.32 : x
  2. Step 2: Convert to fraction form
    556.40/834.36 = 282.32/x
  3. Step 3: Cross multiply
    556.40x = 834.36 × 282.32
  4. Step 4: Simplify right side
    556.40x = 235,556.52
  5. Step 5: Solve for x
    x = 235,556.52/556.40
  6. Step 6: Final answer
    x = 423.36

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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.