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Finding the Fourth Proportional to 202,209.60, 303,314.40 and 187,003.20

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Solution

The fourth proportional to 202,209.60, 303,314.40 and 187,003.20 is: 280,504.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,209.60 : 303,314.40 = 187,003.20 : x
  2. Step 2: Convert to fraction form
    202,209.60/303,314.40 = 187,003.20/x
  3. Step 3: Cross multiply
    202,209.60x = 303,314.40 × 187,003.20
  4. Step 4: Simplify right side
    202,209.60x = 56,720,763,406.08
  5. Step 5: Solve for x
    x = 56,720,763,406.08/202,209.60
  6. Step 6: Final answer
    x = 280,504.80

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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.