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Finding the Fourth Proportional to 202,422.90, 303,670.80 and 84,106.20

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Solution

The fourth proportional to 202,422.90, 303,670.80 and 84,106.20 is: 126,174.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,422.90 : 303,670.80 = 84,106.20 : x
  2. Step 2: Convert to fraction form
    202,422.90/303,670.80 = 84,106.20/x
  3. Step 3: Cross multiply
    202,422.90x = 303,670.80 × 84,106.20
  4. Step 4: Simplify right side
    202,422.90x = 25,540,597,038.96
  5. Step 5: Solve for x
    x = 25,540,597,038.96/202,422.90
  6. Step 6: Final answer
    x = 126,174.44

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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.