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Finding the Fourth Proportional to 202,189.70, 303,534.15 and 127,309.70

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Solution

The fourth proportional to 202,189.70, 303,534.15 and 127,309.70 is: 191,121.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,189.70 : 303,534.15 = 127,309.70 : x
  2. Step 2: Convert to fraction form
    202,189.70/303,534.15 = 127,309.70/x
  3. Step 3: Cross multiply
    202,189.70x = 303,534.15 × 127,309.70
  4. Step 4: Simplify right side
    202,189.70x = 38,642,841,576.26
  5. Step 5: Solve for x
    x = 38,642,841,576.26/202,189.70
  6. Step 6: Final answer
    x = 191,121.71

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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.