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Finding the Fourth Proportional to 187,321.80, 280,982.70 and 174,880.20

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Solution

The fourth proportional to 187,321.80, 280,982.70 and 174,880.20 is: 262,320.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,321.80 : 280,982.70 = 174,880.20 : x
  2. Step 2: Convert to fraction form
    187,321.80/280,982.70 = 174,880.20/x
  3. Step 3: Cross multiply
    187,321.80x = 280,982.70 × 174,880.20
  4. Step 4: Simplify right side
    187,321.80x = 49,138,310,772.54
  5. Step 5: Solve for x
    x = 49,138,310,772.54/187,321.80
  6. Step 6: Final answer
    x = 262,320.30

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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.