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Finding the Fourth Proportional to 218,692.40, 301,794.12 and 123,229.82

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Solution

The fourth proportional to 218,692.40, 301,794.12 and 123,229.82 is: 170,056.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,692.40 : 301,794.12 = 123,229.82 : x
  2. Step 2: Convert to fraction form
    218,692.40/301,794.12 = 123,229.82/x
  3. Step 3: Cross multiply
    218,692.40x = 301,794.12 × 123,229.82
  4. Step 4: Simplify right side
    218,692.40x = 37,190,035,084.66
  5. Step 5: Solve for x
    x = 37,190,035,084.66/218,692.40
  6. Step 6: Final answer
    x = 170,056.37

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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.