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Finding the Fourth Proportional to 248,679.69, 372,705.45 and 106,355.80

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Solution

The fourth proportional to 248,679.69, 372,705.45 and 106,355.80 is: 159,399.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,679.69 : 372,705.45 = 106,355.80 : x
  2. Step 2: Convert to fraction form
    248,679.69/372,705.45 = 106,355.80/x
  3. Step 3: Cross multiply
    248,679.69x = 372,705.45 × 106,355.80
  4. Step 4: Simplify right side
    248,679.69x = 39,639,386,299.11
  5. Step 5: Solve for x
    x = 39,639,386,299.11/248,679.69
  6. Step 6: Final answer
    x = 159,399.37

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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.