Home / 200,490.21-300,734.78-89,604.45

Finding the Fourth Proportional to 200,490.21, 300,734.78 and 89,604.45

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Solution

The fourth proportional to 200,490.21, 300,734.78 and 89,604.45 is: 134,406.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,490.21 : 300,734.78 = 89,604.45 : x
  2. Step 2: Convert to fraction form
    200,490.21/300,734.78 = 89,604.45/x
  3. Step 3: Cross multiply
    200,490.21x = 300,734.78 × 89,604.45
  4. Step 4: Simplify right side
    200,490.21x = 26,947,174,109.75
  5. Step 5: Solve for x
    x = 26,947,174,109.75/200,490.21
  6. Step 6: Final answer
    x = 134,406.43

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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.