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Finding the Fourth Proportional to 545,912.80, 818,577.60 and 230,012.80

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Solution

The fourth proportional to 545,912.80, 818,577.60 and 230,012.80 is: 344,896.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,912.80 : 818,577.60 = 230,012.80 : x
  2. Step 2: Convert to fraction form
    545,912.80/818,577.60 = 230,012.80/x
  3. Step 3: Cross multiply
    545,912.80x = 818,577.60 × 230,012.80
  4. Step 4: Simplify right side
    545,912.80x = 188,283,325,793.28
  5. Step 5: Solve for x
    x = 188,283,325,793.28/545,912.80
  6. Step 6: Final answer
    x = 344,896.34

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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.