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Finding the Fourth Proportional to 187,415.60, 281,220.60 and 82,245.20

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Solution

The fourth proportional to 187,415.60, 281,220.60 and 82,245.20 is: 123,410.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,415.60 : 281,220.60 = 82,245.20 : x
  2. Step 2: Convert to fraction form
    187,415.60/281,220.60 = 82,245.20/x
  3. Step 3: Cross multiply
    187,415.60x = 281,220.60 × 82,245.20
  4. Step 4: Simplify right side
    187,415.60x = 23,129,044,491.12
  5. Step 5: Solve for x
    x = 23,129,044,491.12/187,415.60
  6. Step 6: Final answer
    x = 123,410.46

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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.