Home / 225,515.16-311,211.04-123,544.31

Finding the Fourth Proportional to 225,515.16, 311,211.04 and 123,544.31

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Solution

The fourth proportional to 225,515.16, 311,211.04 and 123,544.31 is: 170,491.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,515.16 : 311,211.04 = 123,544.31 : x
  2. Step 2: Convert to fraction form
    225,515.16/311,211.04 = 123,544.31/x
  3. Step 3: Cross multiply
    225,515.16x = 311,211.04 × 123,544.31
  4. Step 4: Simplify right side
    225,515.16x = 38,448,353,201.18
  5. Step 5: Solve for x
    x = 38,448,353,201.18/225,515.16
  6. Step 6: Final answer
    x = 170,491.21

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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.