Home / 225,795.28-311,597.40-122,429.56

Finding the Fourth Proportional to 225,795.28, 311,597.40 and 122,429.56

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Solution

The fourth proportional to 225,795.28, 311,597.40 and 122,429.56 is: 168,952.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,795.28 : 311,597.40 = 122,429.56 : x
  2. Step 2: Convert to fraction form
    225,795.28/311,597.40 = 122,429.56/x
  3. Step 3: Cross multiply
    225,795.28x = 311,597.40 × 122,429.56
  4. Step 4: Simplify right side
    225,795.28x = 38,148,732,579.14
  5. Step 5: Solve for x
    x = 38,148,732,579.14/225,795.28
  6. Step 6: Final answer
    x = 168,952.75

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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.