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Finding the Fourth Proportional to 287,941.80, 431,394.30 and 246,469.80

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Solution

The fourth proportional to 287,941.80, 431,394.30 and 246,469.80 is: 369,260.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,941.80 : 431,394.30 = 246,469.80 : x
  2. Step 2: Convert to fraction form
    287,941.80/431,394.30 = 246,469.80/x
  3. Step 3: Cross multiply
    287,941.80x = 431,394.30 × 246,469.80
  4. Step 4: Simplify right side
    287,941.80x = 106,325,666,842.14
  5. Step 5: Solve for x
    x = 106,325,666,842.14/287,941.80
  6. Step 6: Final answer
    x = 369,260.96

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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.