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Finding the Fourth Proportional to 225,225.56, 310,811.31 and 123,251.04

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Solution

The fourth proportional to 225,225.56, 310,811.31 and 123,251.04 is: 170,086.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,225.56 : 310,811.31 = 123,251.04 : x
  2. Step 2: Convert to fraction form
    225,225.56/310,811.31 = 123,251.04/x
  3. Step 3: Cross multiply
    225,225.56x = 310,811.31 × 123,251.04
  4. Step 4: Simplify right side
    225,225.56x = 38,307,817,201.26
  5. Step 5: Solve for x
    x = 38,307,817,201.26/225,225.56
  6. Step 6: Final answer
    x = 170,086.46

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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.