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Finding the Fourth Proportional to 200,628.30, 300,942.45 and 110,426.70

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Solution

The fourth proportional to 200,628.30, 300,942.45 and 110,426.70 is: 165,640.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,628.30 : 300,942.45 = 110,426.70 : x
  2. Step 2: Convert to fraction form
    200,628.30/300,942.45 = 110,426.70/x
  3. Step 3: Cross multiply
    200,628.30x = 300,942.45 × 110,426.70
  4. Step 4: Simplify right side
    200,628.30x = 33,232,081,643.42
  5. Step 5: Solve for x
    x = 33,232,081,643.42/200,628.30
  6. Step 6: Final answer
    x = 165,640.05

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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.