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Finding the Fourth Proportional to 202,292.90, 303,111.30 and 127,278.80

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Solution

The fourth proportional to 202,292.90, 303,111.30 and 127,278.80 is: 190,711.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,292.90 : 303,111.30 = 127,278.80 : x
  2. Step 2: Convert to fraction form
    202,292.90/303,111.30 = 127,278.80/x
  3. Step 3: Cross multiply
    202,292.90x = 303,111.30 × 127,278.80
  4. Step 4: Simplify right side
    202,292.90x = 38,579,642,530.44
  5. Step 5: Solve for x
    x = 38,579,642,530.44/202,292.90
  6. Step 6: Final answer
    x = 190,711.80

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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.