Home / 221,346.54-331,822.58-81,072.36

Finding the Fourth Proportional to 221,346.54, 331,822.58 and 81,072.36

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Solution

The fourth proportional to 221,346.54, 331,822.58 and 81,072.36 is: 121,536.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,346.54 : 331,822.58 = 81,072.36 : x
  2. Step 2: Convert to fraction form
    221,346.54/331,822.58 = 81,072.36/x
  3. Step 3: Cross multiply
    221,346.54x = 331,822.58 × 81,072.36
  4. Step 4: Simplify right side
    221,346.54x = 26,901,639,256.53
  5. Step 5: Solve for x
    x = 26,901,639,256.53/221,346.54
  6. Step 6: Final answer
    x = 121,536.30

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1.5x scale

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.