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Finding the Fourth Proportional to 232,142.40, 347,752.80 and 126,772.80

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Solution

The fourth proportional to 232,142.40, 347,752.80 and 126,772.80 is: 189,907.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    232,142.40 : 347,752.80 = 126,772.80 : x
  2. Step 2: Convert to fraction form
    232,142.40/347,752.80 = 126,772.80/x
  3. Step 3: Cross multiply
    232,142.40x = 347,752.80 × 126,772.80
  4. Step 4: Simplify right side
    232,142.40x = 44,085,596,163.84
  5. Step 5: Solve for x
    x = 44,085,596,163.84/232,142.40
  6. Step 6: Final answer
    x = 189,907.56

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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.