Home / 207,313.86-311,584.23-172,004.21

Finding the Fourth Proportional to 207,313.86, 311,584.23 and 172,004.21

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Solution

The fourth proportional to 207,313.86, 311,584.23 and 172,004.21 is: 258,515.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,313.86 : 311,584.23 = 172,004.21 : x
  2. Step 2: Convert to fraction form
    207,313.86/311,584.23 = 172,004.21/x
  3. Step 3: Cross multiply
    207,313.86x = 311,584.23 × 172,004.21
  4. Step 4: Simplify right side
    207,313.86x = 53,593,799,329.61
  5. Step 5: Solve for x
    x = 53,593,799,329.61/207,313.86
  6. Step 6: Final answer
    x = 258,515.27

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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.