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Finding the Fourth Proportional to 187,417.20, 281,028.60 and 69,027.60

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Solution

The fourth proportional to 187,417.20, 281,028.60 and 69,027.60 is: 103,505.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,417.20 : 281,028.60 = 69,027.60 : x
  2. Step 2: Convert to fraction form
    187,417.20/281,028.60 = 69,027.60/x
  3. Step 3: Cross multiply
    187,417.20x = 281,028.60 × 69,027.60
  4. Step 4: Simplify right side
    187,417.20x = 19,398,729,789.36
  5. Step 5: Solve for x
    x = 19,398,729,789.36/187,417.20
  6. Step 6: Final answer
    x = 103,505.60

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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.