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Finding the Fourth Proportional to 323,007.30, 445,764.66 and 187,047.18

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Solution

The fourth proportional to 323,007.30, 445,764.66 and 187,047.18 is: 258,133.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,007.30 : 445,764.66 = 187,047.18 : x
  2. Step 2: Convert to fraction form
    323,007.30/445,764.66 = 187,047.18/x
  3. Step 3: Cross multiply
    323,007.30x = 445,764.66 × 187,047.18
  4. Step 4: Simplify right side
    323,007.30x = 83,379,022,596.66
  5. Step 5: Solve for x
    x = 83,379,022,596.66/323,007.30
  6. Step 6: Final answer
    x = 258,133.55

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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.