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Finding the Fourth Proportional to 362,279.40, 543,203.10 and 222,138.60

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Solution

The fourth proportional to 362,279.40, 543,203.10 and 222,138.60 is: 333,075.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,279.40 : 543,203.10 = 222,138.60 : x
  2. Step 2: Convert to fraction form
    362,279.40/543,203.10 = 222,138.60/x
  3. Step 3: Cross multiply
    362,279.40x = 543,203.10 × 222,138.60
  4. Step 4: Simplify right side
    362,279.40x = 120,666,376,149.66
  5. Step 5: Solve for x
    x = 120,666,376,149.66/362,279.40
  6. Step 6: Final answer
    x = 333,075.46

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1.5x scale

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.