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Finding the Fourth Proportional to 424,993.21, 637,336.72 and 140,631.27

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Solution

The fourth proportional to 424,993.21, 637,336.72 and 140,631.27 is: 210,896.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,993.21 : 637,336.72 = 140,631.27 : x
  2. Step 2: Convert to fraction form
    424,993.21/637,336.72 = 140,631.27/x
  3. Step 3: Cross multiply
    424,993.21x = 637,336.72 × 140,631.27
  4. Step 4: Simplify right side
    424,993.21x = 89,629,469,609.64
  5. Step 5: Solve for x
    x = 89,629,469,609.64/424,993.21
  6. Step 6: Final answer
    x = 210,896.24

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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.