Home / 207,923.80-311,448.30-172,931.80

Finding the Fourth Proportional to 207,923.80, 311,448.30 and 172,931.80

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Solution

The fourth proportional to 207,923.80, 311,448.30 and 172,931.80 is: 259,033.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,923.80 : 311,448.30 = 172,931.80 : x
  2. Step 2: Convert to fraction form
    207,923.80/311,448.30 = 172,931.80/x
  3. Step 3: Cross multiply
    207,923.80x = 311,448.30 × 172,931.80
  4. Step 4: Simplify right side
    207,923.80x = 53,859,315,125.94
  5. Step 5: Solve for x
    x = 53,859,315,125.94/207,923.80
  6. Step 6: Final answer
    x = 259,033.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.