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Finding the Fourth Proportional to 201,861.80, 303,448.80 and 172,993.40

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Solution

The fourth proportional to 201,861.80, 303,448.80 and 172,993.40 is: 260,052.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,861.80 : 303,448.80 = 172,993.40 : x
  2. Step 2: Convert to fraction form
    201,861.80/303,448.80 = 172,993.40/x
  3. Step 3: Cross multiply
    201,861.80x = 303,448.80 × 172,993.40
  4. Step 4: Simplify right side
    201,861.80x = 52,494,639,637.92
  5. Step 5: Solve for x
    x = 52,494,639,637.92/201,861.80
  6. Step 6: Final answer
    x = 260,052.37

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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.