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Finding the Fourth Proportional to 225,313.29, 337,848.71 and 90,309.60

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Solution

The fourth proportional to 225,313.29, 337,848.71 and 90,309.60 is: 135,415.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,313.29 : 337,848.71 = 90,309.60 : x
  2. Step 2: Convert to fraction form
    225,313.29/337,848.71 = 90,309.60/x
  3. Step 3: Cross multiply
    225,313.29x = 337,848.71 × 90,309.60
  4. Step 4: Simplify right side
    225,313.29x = 30,510,981,409.07
  5. Step 5: Solve for x
    x = 30,510,981,409.07/225,313.29
  6. Step 6: Final answer
    x = 135,415.81

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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.