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Finding the Fourth Proportional to 230,951.20, 346,426.80 and 131,072.80

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Solution

The fourth proportional to 230,951.20, 346,426.80 and 131,072.80 is: 196,609.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,951.20 : 346,426.80 = 131,072.80 : x
  2. Step 2: Convert to fraction form
    230,951.20/346,426.80 = 131,072.80/x
  3. Step 3: Cross multiply
    230,951.20x = 346,426.80 × 131,072.80
  4. Step 4: Simplify right side
    230,951.20x = 45,407,130,671.04
  5. Step 5: Solve for x
    x = 45,407,130,671.04/230,951.20
  6. Step 6: Final answer
    x = 196,609.20

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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.