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Finding the Fourth Proportional to 357,991.06, 536,958.37 and 208,135.75

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Solution

The fourth proportional to 357,991.06, 536,958.37 and 208,135.75 is: 312,187.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,991.06 : 536,958.37 = 208,135.75 : x
  2. Step 2: Convert to fraction form
    357,991.06/536,958.37 = 208,135.75/x
  3. Step 3: Cross multiply
    357,991.06x = 536,958.37 × 208,135.75
  4. Step 4: Simplify right side
    357,991.06x = 111,760,233,058.73
  5. Step 5: Solve for x
    x = 111,760,233,058.73/357,991.06
  6. Step 6: Final answer
    x = 312,187.22

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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.