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Finding the Fourth Proportional to 200,386.26, 300,579.39 and 89,500.50

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Solution

The fourth proportional to 200,386.26, 300,579.39 and 89,500.50 is: 134,250.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,386.26 : 300,579.39 = 89,500.50 : x
  2. Step 2: Convert to fraction form
    200,386.26/300,579.39 = 89,500.50/x
  3. Step 3: Cross multiply
    200,386.26x = 300,579.39 × 89,500.50
  4. Step 4: Simplify right side
    200,386.26x = 26,902,005,694.70
  5. Step 5: Solve for x
    x = 26,902,005,694.70/200,386.26
  6. Step 6: Final answer
    x = 134,250.75

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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.