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Finding the Fourth Proportional to 202,020.90, 303,359.40 and 135,754.80

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Solution

The fourth proportional to 202,020.90, 303,359.40 and 135,754.80 is: 203,852.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,020.90 : 303,359.40 = 135,754.80 : x
  2. Step 2: Convert to fraction form
    202,020.90/303,359.40 = 135,754.80/x
  3. Step 3: Cross multiply
    202,020.90x = 303,359.40 × 135,754.80
  4. Step 4: Simplify right side
    202,020.90x = 41,182,494,675.12
  5. Step 5: Solve for x
    x = 41,182,494,675.12/202,020.90
  6. Step 6: Final answer
    x = 203,852.64

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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.