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Finding the Fourth Proportional to 289,992.69, 400,184.96 and 162,665.55

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Solution

The fourth proportional to 289,992.69, 400,184.96 and 162,665.55 is: 224,475.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,992.69 : 400,184.96 = 162,665.55 : x
  2. Step 2: Convert to fraction form
    289,992.69/400,184.96 = 162,665.55/x
  3. Step 3: Cross multiply
    289,992.69x = 400,184.96 × 162,665.55
  4. Step 4: Simplify right side
    289,992.69x = 65,096,305,806.80
  5. Step 5: Solve for x
    x = 65,096,305,806.80/289,992.69
  6. Step 6: Final answer
    x = 224,475.68

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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.