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Finding the Fourth Proportional to 171,400.82, 236,505 and 107,693.50

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Solution

The fourth proportional to 171,400.82, 236,505 and 107,693.50 is: 148,599.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,400.82 : 236,505 = 107,693.50 : x
  2. Step 2: Convert to fraction form
    171,400.82/236,505 = 107,693.50/x
  3. Step 3: Cross multiply
    171,400.82x = 236,505 × 107,693.50
  4. Step 4: Simplify right side
    171,400.82x = 25,470,051,217.50
  5. Step 5: Solve for x
    x = 25,470,051,217.50/171,400.82
  6. Step 6: Final answer
    x = 148,599.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.