Home / 316,170.36-436,331.07-187,182.90

Finding the Fourth Proportional to 316,170.36, 436,331.07 and 187,182.90

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Solution

The fourth proportional to 316,170.36, 436,331.07 and 187,182.90 is: 258,321.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,170.36 : 436,331.07 = 187,182.90 : x
  2. Step 2: Convert to fraction form
    316,170.36/436,331.07 = 187,182.90/x
  3. Step 3: Cross multiply
    316,170.36x = 436,331.07 × 187,182.90
  4. Step 4: Simplify right side
    316,170.36x = 81,673,715,042.70
  5. Step 5: Solve for x
    x = 81,673,715,042.70/316,170.36
  6. Step 6: Final answer
    x = 258,321.86

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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.