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Finding the Fourth Proportional to 366,665.31, 550,840.01 and 258,842.61

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Solution

The fourth proportional to 366,665.31, 550,840.01 and 258,842.61 is: 388,858.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,665.31 : 550,840.01 = 258,842.61 : x
  2. Step 2: Convert to fraction form
    366,665.31/550,840.01 = 258,842.61/x
  3. Step 3: Cross multiply
    366,665.31x = 550,840.01 × 258,842.61
  4. Step 4: Simplify right side
    366,665.31x = 142,580,864,586.61
  5. Step 5: Solve for x
    x = 142,580,864,586.61/366,665.31
  6. Step 6: Final answer
    x = 388,858.34

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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.