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Finding the Fourth Proportional to 225,090.89, 310,635.37 and 129,628.34

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Solution

The fourth proportional to 225,090.89, 310,635.37 and 129,628.34 is: 178,892.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,090.89 : 310,635.37 = 129,628.34 : x
  2. Step 2: Convert to fraction form
    225,090.89/310,635.37 = 129,628.34/x
  3. Step 3: Cross multiply
    225,090.89x = 310,635.37 × 129,628.34
  4. Step 4: Simplify right side
    225,090.89x = 40,267,147,358.39
  5. Step 5: Solve for x
    x = 40,267,147,358.39/225,090.89
  6. Step 6: Final answer
    x = 178,892.83

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1.5x scale

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.