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Finding the Fourth Proportional to 225,967.71, 311,863.11 and 130,474.20

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Solution

The fourth proportional to 225,967.71, 311,863.11 and 130,474.20 is: 180,070.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,967.71 : 311,863.11 = 130,474.20 : x
  2. Step 2: Convert to fraction form
    225,967.71/311,863.11 = 130,474.20/x
  3. Step 3: Cross multiply
    225,967.71x = 311,863.11 × 130,474.20
  4. Step 4: Simplify right side
    225,967.71x = 40,690,089,786.76
  5. Step 5: Solve for x
    x = 40,690,089,786.76/225,967.71
  6. Step 6: Final answer
    x = 180,070.37

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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.