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Finding the Fourth Proportional to 293,804.20, 440,706.30 and 267,999.40

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Solution

The fourth proportional to 293,804.20, 440,706.30 and 267,999.40 is: 401,999.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,804.20 : 440,706.30 = 267,999.40 : x
  2. Step 2: Convert to fraction form
    293,804.20/440,706.30 = 267,999.40/x
  3. Step 3: Cross multiply
    293,804.20x = 440,706.30 × 267,999.40
  4. Step 4: Simplify right side
    293,804.20x = 118,109,023,976.22
  5. Step 5: Solve for x
    x = 118,109,023,976.22/293,804.20
  6. Step 6: Final answer
    x = 401,999.10

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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.