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Finding the Fourth Proportional to 227,680.80, 341,290.80 and 134,138.40

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Solution

The fourth proportional to 227,680.80, 341,290.80 and 134,138.40 is: 201,071.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,680.80 : 341,290.80 = 134,138.40 : x
  2. Step 2: Convert to fraction form
    227,680.80/341,290.80 = 134,138.40/x
  3. Step 3: Cross multiply
    227,680.80x = 341,290.80 × 134,138.40
  4. Step 4: Simplify right side
    227,680.80x = 45,780,201,846.72
  5. Step 5: Solve for x
    x = 45,780,201,846.72/227,680.80
  6. Step 6: Final answer
    x = 201,071.86

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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.