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Finding the Fourth Proportional to 202,301.70, 303,416.10 and 127,287.60

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Solution

The fourth proportional to 202,301.70, 303,416.10 and 127,287.60 is: 190,908.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,301.70 : 303,416.10 = 127,287.60 : x
  2. Step 2: Convert to fraction form
    202,301.70/303,416.10 = 127,287.60/x
  3. Step 3: Cross multiply
    202,301.70x = 303,416.10 × 127,287.60
  4. Step 4: Simplify right side
    202,301.70x = 38,621,107,170.36
  5. Step 5: Solve for x
    x = 38,621,107,170.36/202,301.70
  6. Step 6: Final answer
    x = 190,908.47

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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.