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Finding the Fourth Proportional to 201,492.94, 278,054.67 and 109,609.17

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Solution

The fourth proportional to 201,492.94, 278,054.67 and 109,609.17 is: 151,257.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,492.94 : 278,054.67 = 109,609.17 : x
  2. Step 2: Convert to fraction form
    201,492.94/278,054.67 = 109,609.17/x
  3. Step 3: Cross multiply
    201,492.94x = 278,054.67 × 109,609.17
  4. Step 4: Simplify right side
    201,492.94x = 30,477,340,203.05
  5. Step 5: Solve for x
    x = 30,477,340,203.05/201,492.94
  6. Step 6: Final answer
    x = 151,257.61

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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.