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Finding the Fourth Proportional to 223,758.74, 335,639.02 and 90,641.54

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Solution

The fourth proportional to 223,758.74, 335,639.02 and 90,641.54 is: 135,962.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,758.74 : 335,639.02 = 90,641.54 : x
  2. Step 2: Convert to fraction form
    223,758.74/335,639.02 = 90,641.54/x
  3. Step 3: Cross multiply
    223,758.74x = 335,639.02 × 90,641.54
  4. Step 4: Simplify right side
    223,758.74x = 30,422,837,656.89
  5. Step 5: Solve for x
    x = 30,422,837,656.89/223,758.74
  6. Step 6: Final answer
    x = 135,962.68

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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.