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Finding the Fourth Proportional to 202,381.22, 303,543.31 and 127,272.42

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Solution

The fourth proportional to 202,381.22, 303,543.31 and 127,272.42 is: 190,890.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,381.22 : 303,543.31 = 127,272.42 : x
  2. Step 2: Convert to fraction form
    202,381.22/303,543.31 = 127,272.42/x
  3. Step 3: Cross multiply
    202,381.22x = 303,543.31 × 127,272.42
  4. Step 4: Simplify right side
    202,381.22x = 38,632,691,638.51
  5. Step 5: Solve for x
    x = 38,632,691,638.51/202,381.22
  6. Step 6: Final answer
    x = 190,890.69

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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.