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Finding the Fourth Proportional to 275,480.40, 413,220.60 and 186,250.80

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Solution

The fourth proportional to 275,480.40, 413,220.60 and 186,250.80 is: 279,376.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,480.40 : 413,220.60 = 186,250.80 : x
  2. Step 2: Convert to fraction form
    275,480.40/413,220.60 = 186,250.80/x
  3. Step 3: Cross multiply
    275,480.40x = 413,220.60 × 186,250.80
  4. Step 4: Simplify right side
    275,480.40x = 76,962,667,326.48
  5. Step 5: Solve for x
    x = 76,962,667,326.48/275,480.40
  6. Step 6: Final answer
    x = 279,376.20

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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.