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Finding the Fourth Proportional to 202,310.90, 303,138.30 and 127,296.80

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Solution

The fourth proportional to 202,310.90, 303,138.30 and 127,296.80 is: 190,738.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,310.90 : 303,138.30 = 127,296.80 : x
  2. Step 2: Convert to fraction form
    202,310.90/303,138.30 = 127,296.80/x
  3. Step 3: Cross multiply
    202,310.90x = 303,138.30 × 127,296.80
  4. Step 4: Simplify right side
    202,310.90x = 38,588,535,547.44
  5. Step 5: Solve for x
    x = 38,588,535,547.44/202,310.90
  6. Step 6: Final answer
    x = 190,738.79

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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.