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Finding the Fourth Proportional to 201,326.80, 301,990.20 and 82,937.20

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Solution

The fourth proportional to 201,326.80, 301,990.20 and 82,937.20 is: 124,405.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,326.80 : 301,990.20 = 82,937.20 : x
  2. Step 2: Convert to fraction form
    201,326.80/301,990.20 = 82,937.20/x
  3. Step 3: Cross multiply
    201,326.80x = 301,990.20 × 82,937.20
  4. Step 4: Simplify right side
    201,326.80x = 25,046,221,615.44
  5. Step 5: Solve for x
    x = 25,046,221,615.44/201,326.80
  6. Step 6: Final answer
    x = 124,405.80

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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.