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Finding the Fourth Proportional to 200,321.17, 300,628.77 and 161,348.83

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Solution

The fourth proportional to 200,321.17, 300,628.77 and 161,348.83 is: 242,141.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,321.17 : 300,628.77 = 161,348.83 : x
  2. Step 2: Convert to fraction form
    200,321.17/300,628.77 = 161,348.83/x
  3. Step 3: Cross multiply
    200,321.17x = 300,628.77 × 161,348.83
  4. Step 4: Simplify right side
    200,321.17x = 48,506,098,947.21
  5. Step 5: Solve for x
    x = 48,506,098,947.21/200,321.17
  6. Step 6: Final answer
    x = 242,141.65

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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.