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Finding the Fourth Proportional to 289,942.38, 400,121.91 and 162,624.78

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Solution

The fourth proportional to 289,942.38, 400,121.91 and 162,624.78 is: 224,423.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,942.38 : 400,121.91 = 162,624.78 : x
  2. Step 2: Convert to fraction form
    289,942.38/400,121.91 = 162,624.78/x
  3. Step 3: Cross multiply
    289,942.38x = 400,121.91 × 162,624.78
  4. Step 4: Simplify right side
    289,942.38x = 65,069,737,586.93
  5. Step 5: Solve for x
    x = 65,069,737,586.93/289,942.38
  6. Step 6: Final answer
    x = 224,423.00

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