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Finding the Fourth Proportional to 354,579.53, 489,299.13 and 201,595.64

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Solution

The fourth proportional to 354,579.53, 489,299.13 and 201,595.64 is: 278,190.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,579.53 : 489,299.13 = 201,595.64 : x
  2. Step 2: Convert to fraction form
    354,579.53/489,299.13 = 201,595.64/x
  3. Step 3: Cross multiply
    354,579.53x = 489,299.13 × 201,595.64
  4. Step 4: Simplify right side
    354,579.53x = 98,640,568,817.30
  5. Step 5: Solve for x
    x = 98,640,568,817.30/354,579.53
  6. Step 6: Final answer
    x = 278,190.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.