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Finding the Fourth Proportional to 200,087.71, 300,109.46 and 50,328.07

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Solution

The fourth proportional to 200,087.71, 300,109.46 and 50,328.07 is: 75,486.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,087.71 : 300,109.46 = 50,328.07 : x
  2. Step 2: Convert to fraction form
    200,087.71/300,109.46 = 50,328.07/x
  3. Step 3: Cross multiply
    200,087.71x = 300,109.46 × 50,328.07
  4. Step 4: Simplify right side
    200,087.71x = 15,103,928,908.63
  5. Step 5: Solve for x
    x = 15,103,928,908.63/200,087.71
  6. Step 6: Final answer
    x = 75,486.54

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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.