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Finding the Fourth Proportional to 201,607.04, 278,212.58 and 109,722.44

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Solution

The fourth proportional to 201,607.04, 278,212.58 and 109,722.44 is: 151,414.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,607.04 : 278,212.58 = 109,722.44 : x
  2. Step 2: Convert to fraction form
    201,607.04/278,212.58 = 109,722.44/x
  3. Step 3: Cross multiply
    201,607.04x = 278,212.58 × 109,722.44
  4. Step 4: Simplify right side
    201,607.04x = 30,526,163,116.30
  5. Step 5: Solve for x
    x = 30,526,163,116.30/201,607.04
  6. Step 6: Final answer
    x = 151,414.17

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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.