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Finding the Fourth Proportional to 188,679, 260,164.44 and 145,560.36

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Solution

The fourth proportional to 188,679, 260,164.44 and 145,560.36 is: 200,709.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,679 : 260,164.44 = 145,560.36 : x
  2. Step 2: Convert to fraction form
    188,679/260,164.44 = 145,560.36/x
  3. Step 3: Cross multiply
    188,679x = 260,164.44 × 145,560.36
  4. Step 4: Simplify right side
    188,679x = 37,869,629,545.60
  5. Step 5: Solve for x
    x = 37,869,629,545.60/188,679
  6. Step 6: Final answer
    x = 200,709.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.