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Finding the Fourth Proportional to 207,228.98, 285,986.50 and 122,344.22

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Solution

The fourth proportional to 207,228.98, 285,986.50 and 122,344.22 is: 168,841.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,228.98 : 285,986.50 = 122,344.22 : x
  2. Step 2: Convert to fraction form
    207,228.98/285,986.50 = 122,344.22/x
  3. Step 3: Cross multiply
    207,228.98x = 285,986.50 × 122,344.22
  4. Step 4: Simplify right side
    207,228.98x = 34,988,795,273.03
  5. Step 5: Solve for x
    x = 34,988,795,273.03/207,228.98
  6. Step 6: Final answer
    x = 168,841.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.