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Finding the Fourth Proportional to 267,379.80, 401,069.70 and 265,536.60

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Solution

The fourth proportional to 267,379.80, 401,069.70 and 265,536.60 is: 398,304.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,379.80 : 401,069.70 = 265,536.60 : x
  2. Step 2: Convert to fraction form
    267,379.80/401,069.70 = 265,536.60/x
  3. Step 3: Cross multiply
    267,379.80x = 401,069.70 × 265,536.60
  4. Step 4: Simplify right side
    267,379.80x = 106,498,684,501.02
  5. Step 5: Solve for x
    x = 106,498,684,501.02/267,379.80
  6. Step 6: Final answer
    x = 398,304.90

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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.