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Finding the Fourth Proportional to 200,319.60, 300,625.20 and 133,737.60

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Solution

The fourth proportional to 200,319.60, 300,625.20 and 133,737.60 is: 200,703.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,319.60 : 300,625.20 = 133,737.60 : x
  2. Step 2: Convert to fraction form
    200,319.60/300,625.20 = 133,737.60/x
  3. Step 3: Cross multiply
    200,319.60x = 300,625.20 × 133,737.60
  4. Step 4: Simplify right side
    200,319.60x = 40,204,892,747.52
  5. Step 5: Solve for x
    x = 40,204,892,747.52/200,319.60
  6. Step 6: Final answer
    x = 200,703.74

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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.