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Finding the Fourth Proportional to 262,636.65, 393,954.98 and 75,667.05

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Solution

The fourth proportional to 262,636.65, 393,954.98 and 75,667.05 is: 113,500.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,636.65 : 393,954.98 = 75,667.05 : x
  2. Step 2: Convert to fraction form
    262,636.65/393,954.98 = 75,667.05/x
  3. Step 3: Cross multiply
    262,636.65x = 393,954.98 × 75,667.05
  4. Step 4: Simplify right side
    262,636.65x = 29,809,410,791.07
  5. Step 5: Solve for x
    x = 29,809,410,791.07/262,636.65
  6. Step 6: Final answer
    x = 113,500.58

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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.