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Finding the Fourth Proportional to 259,969.57, 390,098.57 and 126,850.93

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Solution

The fourth proportional to 259,969.57, 390,098.57 and 126,850.93 is: 190,346.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,969.57 : 390,098.57 = 126,850.93 : x
  2. Step 2: Convert to fraction form
    259,969.57/390,098.57 = 126,850.93/x
  3. Step 3: Cross multiply
    259,969.57x = 390,098.57 × 126,850.93
  4. Step 4: Simplify right side
    259,969.57x = 49,484,364,786.67
  5. Step 5: Solve for x
    x = 49,484,364,786.67/259,969.57
  6. Step 6: Final answer
    x = 190,346.76

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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.