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Finding the Fourth Proportional to 201,782.80, 303,330.30 and 143,025.40

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Solution

The fourth proportional to 201,782.80, 303,330.30 and 143,025.40 is: 215,003.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,782.80 : 303,330.30 = 143,025.40 : x
  2. Step 2: Convert to fraction form
    201,782.80/303,330.30 = 143,025.40/x
  3. Step 3: Cross multiply
    201,782.80x = 303,330.30 × 143,025.40
  4. Step 4: Simplify right side
    201,782.80x = 43,383,937,489.62
  5. Step 5: Solve for x
    x = 43,383,937,489.62/201,782.80
  6. Step 6: Final answer
    x = 215,003.15

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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.