Home / 225,412.47-311,069.31-123,444.29

Finding the Fourth Proportional to 225,412.47, 311,069.31 and 123,444.29

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Solution

The fourth proportional to 225,412.47, 311,069.31 and 123,444.29 is: 170,353.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,412.47 : 311,069.31 = 123,444.29 : x
  2. Step 2: Convert to fraction form
    225,412.47/311,069.31 = 123,444.29/x
  3. Step 3: Cross multiply
    225,412.47x = 311,069.31 × 123,444.29
  4. Step 4: Simplify right side
    225,412.47x = 38,399,728,558.39
  5. Step 5: Solve for x
    x = 38,399,728,558.39/225,412.47
  6. Step 6: Final answer
    x = 170,353.17

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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.