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Finding the Fourth Proportional to 282,636.18, 389,648.21 and 225,469.53

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Solution

The fourth proportional to 282,636.18, 389,648.21 and 225,469.53 is: 310,837.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,636.18 : 389,648.21 = 225,469.53 : x
  2. Step 2: Convert to fraction form
    282,636.18/389,648.21 = 225,469.53/x
  3. Step 3: Cross multiply
    282,636.18x = 389,648.21 × 225,469.53
  4. Step 4: Simplify right side
    282,636.18x = 87,853,797,646.69
  5. Step 5: Solve for x
    x = 87,853,797,646.69/282,636.18
  6. Step 6: Final answer
    x = 310,837.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.