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Finding the Fourth Proportional to 289,982.67, 400,149.20 and 162,633.63

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Solution

The fourth proportional to 289,982.67, 400,149.20 and 162,633.63 is: 224,419.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,982.67 : 400,149.20 = 162,633.63 : x
  2. Step 2: Convert to fraction form
    289,982.67/400,149.20 = 162,633.63/x
  3. Step 3: Cross multiply
    289,982.67x = 400,149.20 × 162,633.63
  4. Step 4: Simplify right side
    289,982.67x = 65,077,716,124.43
  5. Step 5: Solve for x
    x = 65,077,716,124.43/289,982.67
  6. Step 6: Final answer
    x = 224,419.33

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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.