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Finding the Fourth Proportional to 190,460.92, 285,680.04 and 85,251.64

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Solution

The fourth proportional to 190,460.92, 285,680.04 and 85,251.64 is: 127,872.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,460.92 : 285,680.04 = 85,251.64 : x
  2. Step 2: Convert to fraction form
    190,460.92/285,680.04 = 85,251.64/x
  3. Step 3: Cross multiply
    190,460.92x = 285,680.04 × 85,251.64
  4. Step 4: Simplify right side
    190,460.92x = 24,354,691,925.27
  5. Step 5: Solve for x
    x = 24,354,691,925.27/190,460.92
  6. Step 6: Final answer
    x = 127,872.38

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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.