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Finding the Fourth Proportional to 200,444.42, 300,449.28 and 100,363.34

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Solution

The fourth proportional to 200,444.42, 300,449.28 and 100,363.34 is: 150,436.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,444.42 : 300,449.28 = 100,363.34 : x
  2. Step 2: Convert to fraction form
    200,444.42/300,449.28 = 100,363.34/x
  3. Step 3: Cross multiply
    200,444.42x = 300,449.28 × 100,363.34
  4. Step 4: Simplify right side
    200,444.42x = 30,154,093,241.40
  5. Step 5: Solve for x
    x = 30,154,093,241.40/200,444.42
  6. Step 6: Final answer
    x = 150,436.18

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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.