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Finding the Fourth Proportional to 427,245.44, 640,904.52 and 111,701.84

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Solution

The fourth proportional to 427,245.44, 640,904.52 and 111,701.84 is: 167,562.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,245.44 : 640,904.52 = 111,701.84 : x
  2. Step 2: Convert to fraction form
    427,245.44/640,904.52 = 111,701.84/x
  3. Step 3: Cross multiply
    427,245.44x = 640,904.52 × 111,701.84
  4. Step 4: Simplify right side
    427,245.44x = 71,590,214,148.32
  5. Step 5: Solve for x
    x = 71,590,214,148.32/427,245.44
  6. Step 6: Final answer
    x = 167,562.27

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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.