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Finding the Fourth Proportional to 252,581.88, 378,606.24 and 84,056.88

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Solution

The fourth proportional to 252,581.88, 378,606.24 and 84,056.88 is: 125,996.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,581.88 : 378,606.24 = 84,056.88 : x
  2. Step 2: Convert to fraction form
    252,581.88/378,606.24 = 84,056.88/x
  3. Step 3: Cross multiply
    252,581.88x = 378,606.24 × 84,056.88
  4. Step 4: Simplify right side
    252,581.88x = 31,824,459,282.93
  5. Step 5: Solve for x
    x = 31,824,459,282.93/252,581.88
  6. Step 6: Final answer
    x = 125,996.60

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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.