Home / 316,234.82-436,405.37-172,997.25

Finding the Fourth Proportional to 316,234.82, 436,405.37 and 172,997.25

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Solution

The fourth proportional to 316,234.82, 436,405.37 and 172,997.25 is: 238,736.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,234.82 : 436,405.37 = 172,997.25 : x
  2. Step 2: Convert to fraction form
    316,234.82/436,405.37 = 172,997.25/x
  3. Step 3: Cross multiply
    316,234.82x = 436,405.37 × 172,997.25
  4. Step 4: Simplify right side
    316,234.82x = 75,496,928,030.25
  5. Step 5: Solve for x
    x = 75,496,928,030.25/316,234.82
  6. Step 6: Final answer
    x = 238,736.93

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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.