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Finding the Fourth Proportional to 189,252.18, 283,878.28 and 76,993.44

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Solution

The fourth proportional to 189,252.18, 283,878.28 and 76,993.44 is: 115,490.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,252.18 : 283,878.28 = 76,993.44 : x
  2. Step 2: Convert to fraction form
    189,252.18/283,878.28 = 76,993.44/x
  3. Step 3: Cross multiply
    189,252.18x = 283,878.28 × 76,993.44
  4. Step 4: Simplify right side
    189,252.18x = 21,856,765,318.48
  5. Step 5: Solve for x
    x = 21,856,765,318.48/189,252.18
  6. Step 6: Final answer
    x = 115,490.16

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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.