Home / 221,346.67-331,822.75-81,072.49

Finding the Fourth Proportional to 221,346.67, 331,822.75 and 81,072.49

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Solution

The fourth proportional to 221,346.67, 331,822.75 and 81,072.49 is: 121,536.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,346.67 : 331,822.75 = 81,072.49 : x
  2. Step 2: Convert to fraction form
    221,346.67/331,822.75 = 81,072.49/x
  3. Step 3: Cross multiply
    221,346.67x = 331,822.75 × 81,072.49
  4. Step 4: Simplify right side
    221,346.67x = 26,901,696,581.15
  5. Step 5: Solve for x
    x = 26,901,696,581.15/221,346.67
  6. Step 6: Final answer
    x = 121,536.49

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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.