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Finding the Fourth Proportional to 188,900.40, 283,350.60 and 187,150.80

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Solution

The fourth proportional to 188,900.40, 283,350.60 and 187,150.80 is: 280,726.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,900.40 : 283,350.60 = 187,150.80 : x
  2. Step 2: Convert to fraction form
    188,900.40/283,350.60 = 187,150.80/x
  3. Step 3: Cross multiply
    188,900.40x = 283,350.60 × 187,150.80
  4. Step 4: Simplify right side
    188,900.40x = 53,029,291,470.48
  5. Step 5: Solve for x
    x = 53,029,291,470.48/188,900.40
  6. Step 6: Final answer
    x = 280,726.20

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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.