Home / 225,821.71-311,611.50-130,359.16

Finding the Fourth Proportional to 225,821.71, 311,611.50 and 130,359.16

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Solution

The fourth proportional to 225,821.71, 311,611.50 and 130,359.16 is: 179,882.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,821.71 : 311,611.50 = 130,359.16 : x
  2. Step 2: Convert to fraction form
    225,821.71/311,611.50 = 130,359.16/x
  3. Step 3: Cross multiply
    225,821.71x = 311,611.50 × 130,359.16
  4. Step 4: Simplify right side
    225,821.71x = 40,621,411,176.49
  5. Step 5: Solve for x
    x = 40,621,411,176.49/225,821.71
  6. Step 6: Final answer
    x = 179,882.67

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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.