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Finding the Fourth Proportional to 192,874.40, 289,311.60 and 162,461.60

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Solution

The fourth proportional to 192,874.40, 289,311.60 and 162,461.60 is: 243,692.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,874.40 : 289,311.60 = 162,461.60 : x
  2. Step 2: Convert to fraction form
    192,874.40/289,311.60 = 162,461.60/x
  3. Step 3: Cross multiply
    192,874.40x = 289,311.60 × 162,461.60
  4. Step 4: Simplify right side
    192,874.40x = 47,002,025,434.56
  5. Step 5: Solve for x
    x = 47,002,025,434.56/192,874.40
  6. Step 6: Final answer
    x = 243,692.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.