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Finding the Fourth Proportional to 218,215.73, 301,102.52 and 122,716.73

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Solution

The fourth proportional to 218,215.73, 301,102.52 and 122,716.73 is: 169,329.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,215.73 : 301,102.52 = 122,716.73 : x
  2. Step 2: Convert to fraction form
    218,215.73/301,102.52 = 122,716.73/x
  3. Step 3: Cross multiply
    218,215.73x = 301,102.52 × 122,716.73
  4. Step 4: Simplify right side
    218,215.73x = 36,950,316,788.33
  5. Step 5: Solve for x
    x = 36,950,316,788.33/218,215.73
  6. Step 6: Final answer
    x = 169,329.30

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1.5x scale

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.