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Finding the Fourth Proportional to 247,991.88, 372,035.70 and 105,835.08

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Solution

The fourth proportional to 247,991.88, 372,035.70 and 105,835.08 is: 158,773.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,991.88 : 372,035.70 = 105,835.08 : x
  2. Step 2: Convert to fraction form
    247,991.88/372,035.70 = 105,835.08/x
  3. Step 3: Cross multiply
    247,991.88x = 372,035.70 × 105,835.08
  4. Step 4: Simplify right side
    247,991.88x = 39,374,428,072.36
  5. Step 5: Solve for x
    x = 39,374,428,072.36/247,991.88
  6. Step 6: Final answer
    x = 158,773.05

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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.