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Finding the Fourth Proportional to 543,512.70, 815,075.04 and 223,571.06

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Solution

The fourth proportional to 543,512.70, 815,075.04 and 223,571.06 is: 335,276.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,512.70 : 815,075.04 = 223,571.06 : x
  2. Step 2: Convert to fraction form
    543,512.70/815,075.04 = 223,571.06/x
  3. Step 3: Cross multiply
    543,512.70x = 815,075.04 × 223,571.06
  4. Step 4: Simplify right side
    543,512.70x = 182,227,190,672.34
  5. Step 5: Solve for x
    x = 182,227,190,672.34/543,512.70
  6. Step 6: Final answer
    x = 335,276.79

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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.