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Finding the Fourth Proportional to 146,318, 201,918.84 and 79,250

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Solution

The fourth proportional to 146,318, 201,918.84 and 79,250 is: 109,365

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,318 : 201,918.84 = 79,250 : x
  2. Step 2: Convert to fraction form
    146,318/201,918.84 = 79,250/x
  3. Step 3: Cross multiply
    146,318x = 201,918.84 × 79,250
  4. Step 4: Simplify right side
    146,318x = 16,002,068,070
  5. Step 5: Solve for x
    x = 16,002,068,070/146,318
  6. Step 6: Final answer
    x = 109,365

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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.