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Finding the Fourth Proportional to 133,878.80, 200,818.20 and 40,372.40

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Solution

The fourth proportional to 133,878.80, 200,818.20 and 40,372.40 is: 60,558.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,878.80 : 200,818.20 = 40,372.40 : x
  2. Step 2: Convert to fraction form
    133,878.80/200,818.20 = 40,372.40/x
  3. Step 3: Cross multiply
    133,878.80x = 200,818.20 × 40,372.40
  4. Step 4: Simplify right side
    133,878.80x = 8,107,512,697.68
  5. Step 5: Solve for x
    x = 8,107,512,697.68/133,878.80
  6. Step 6: Final answer
    x = 60,558.60

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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.