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Finding the Fourth Proportional to 323,439.14, 485,252.25 and 133,864.46

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Solution

The fourth proportional to 323,439.14, 485,252.25 and 133,864.46 is: 200,835.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,439.14 : 485,252.25 = 133,864.46 : x
  2. Step 2: Convert to fraction form
    323,439.14/485,252.25 = 133,864.46/x
  3. Step 3: Cross multiply
    323,439.14x = 485,252.25 × 133,864.46
  4. Step 4: Simplify right side
    323,439.14x = 64,958,030,410.04
  5. Step 5: Solve for x
    x = 64,958,030,410.04/323,439.14
  6. Step 6: Final answer
    x = 200,835.40

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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.