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Finding the Fourth Proportional to 298,012.11, 411,250.89 and 162,044.87

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Solution

The fourth proportional to 298,012.11, 411,250.89 and 162,044.87 is: 223,618.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,012.11 : 411,250.89 = 162,044.87 : x
  2. Step 2: Convert to fraction form
    298,012.11/411,250.89 = 162,044.87/x
  3. Step 3: Cross multiply
    298,012.11x = 411,250.89 × 162,044.87
  4. Step 4: Simplify right side
    298,012.11x = 66,641,094,951.18
  5. Step 5: Solve for x
    x = 66,641,094,951.18/298,012.11
  6. Step 6: Final answer
    x = 223,618.75

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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.