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Finding the Fourth Proportional to 220,141.40, 330,212.10 and 114,935.90

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Solution

The fourth proportional to 220,141.40, 330,212.10 and 114,935.90 is: 172,403.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,141.40 : 330,212.10 = 114,935.90 : x
  2. Step 2: Convert to fraction form
    220,141.40/330,212.10 = 114,935.90/x
  3. Step 3: Cross multiply
    220,141.40x = 330,212.10 × 114,935.90
  4. Step 4: Simplify right side
    220,141.40x = 37,953,224,904.39
  5. Step 5: Solve for x
    x = 37,953,224,904.39/220,141.40
  6. Step 6: Final answer
    x = 172,403.85

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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.