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Finding the Fourth Proportional to 243,447.36, 365,136.92 and 83,520.64

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Solution

The fourth proportional to 243,447.36, 365,136.92 and 83,520.64 is: 125,269.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,447.36 : 365,136.92 = 83,520.64 : x
  2. Step 2: Convert to fraction form
    243,447.36/365,136.92 = 83,520.64/x
  3. Step 3: Cross multiply
    243,447.36x = 365,136.92 × 83,520.64
  4. Step 4: Simplify right side
    243,447.36x = 30,496,469,246.03
  5. Step 5: Solve for x
    x = 30,496,469,246.03/243,447.36
  6. Step 6: Final answer
    x = 125,269.25

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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.