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Finding the Fourth Proportional to 223,273.87, 334,921.73 and 90,137.50

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Solution

The fourth proportional to 223,273.87, 334,921.73 and 90,137.50 is: 135,210.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,273.87 : 334,921.73 = 90,137.50 : x
  2. Step 2: Convert to fraction form
    223,273.87/334,921.73 = 90,137.50/x
  3. Step 3: Cross multiply
    223,273.87x = 334,921.73 × 90,137.50
  4. Step 4: Simplify right side
    223,273.87x = 30,189,007,437.88
  5. Step 5: Solve for x
    x = 30,189,007,437.88/223,273.87
  6. Step 6: Final answer
    x = 135,210.66

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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.