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Finding the Fourth Proportional to 282,209.63, 389,449.55 and 161,353.44

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Solution

The fourth proportional to 282,209.63, 389,449.55 and 161,353.44 is: 222,667.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,209.63 : 389,449.55 = 161,353.44 : x
  2. Step 2: Convert to fraction form
    282,209.63/389,449.55 = 161,353.44/x
  3. Step 3: Cross multiply
    282,209.63x = 389,449.55 × 161,353.44
  4. Step 4: Simplify right side
    282,209.63x = 62,839,025,002.34
  5. Step 5: Solve for x
    x = 62,839,025,002.34/282,209.63
  6. Step 6: Final answer
    x = 222,667.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.