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Finding the Fourth Proportional to 298,489.50, 411,922.89 and 162,530.90

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Solution

The fourth proportional to 298,489.50, 411,922.89 and 162,530.90 is: 224,296.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,489.50 : 411,922.89 = 162,530.90 : x
  2. Step 2: Convert to fraction form
    298,489.50/411,922.89 = 162,530.90/x
  3. Step 3: Cross multiply
    298,489.50x = 411,922.89 × 162,530.90
  4. Step 4: Simplify right side
    298,489.50x = 66,950,196,825.98
  5. Step 5: Solve for x
    x = 66,950,196,825.98/298,489.50
  6. Step 6: Final answer
    x = 224,296.66

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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.