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Finding the Fourth Proportional to 154,692.26, 231,579.05 and 84,358.34

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Solution

The fourth proportional to 154,692.26, 231,579.05 and 84,358.34 is: 126,287.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,692.26 : 231,579.05 = 84,358.34 : x
  2. Step 2: Convert to fraction form
    154,692.26/231,579.05 = 84,358.34/x
  3. Step 3: Cross multiply
    154,692.26x = 231,579.05 × 84,358.34
  4. Step 4: Simplify right side
    154,692.26x = 19,535,622,657.09
  5. Step 5: Solve for x
    x = 19,535,622,657.09/154,692.26
  6. Step 6: Final answer
    x = 126,287.01

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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.