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Finding the Fourth Proportional to 323,441.79, 485,387.80 and 133,903.14

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Solution

The fourth proportional to 323,441.79, 485,387.80 and 133,903.14 is: 200,947.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,441.79 : 485,387.80 = 133,903.14 : x
  2. Step 2: Convert to fraction form
    323,441.79/485,387.80 = 133,903.14/x
  3. Step 3: Cross multiply
    323,441.79x = 485,387.80 × 133,903.14
  4. Step 4: Simplify right side
    323,441.79x = 64,994,950,537.69
  5. Step 5: Solve for x
    x = 64,994,950,537.69/323,441.79
  6. Step 6: Final answer
    x = 200,947.91

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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.