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Finding the Fourth Proportional to 259,991.00, 389,986.32 and 97,915.62

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Solution

The fourth proportional to 259,991.00, 389,986.32 and 97,915.62 is: 146,873.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,991.00 : 389,986.32 = 97,915.62 : x
  2. Step 2: Convert to fraction form
    259,991.00/389,986.32 = 97,915.62/x
  3. Step 3: Cross multiply
    259,991.00x = 389,986.32 × 97,915.62
  4. Step 4: Simplify right side
    259,991.00x = 38,185,751,674.89
  5. Step 5: Solve for x
    x = 38,185,751,674.89/259,991.00
  6. Step 6: Final answer
    x = 146,873.36

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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.