Home / 313,010.32-431,960.12-192,091.09

Finding the Fourth Proportional to 313,010.32, 431,960.12 and 192,091.09

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Solution

The fourth proportional to 313,010.32, 431,960.12 and 192,091.09 is: 265,089.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,010.32 : 431,960.12 = 192,091.09 : x
  2. Step 2: Convert to fraction form
    313,010.32/431,960.12 = 192,091.09/x
  3. Step 3: Cross multiply
    313,010.32x = 431,960.12 × 192,091.09
  4. Step 4: Simplify right side
    313,010.32x = 82,975,688,607.76
  5. Step 5: Solve for x
    x = 82,975,688,607.76/313,010.32
  6. Step 6: Final answer
    x = 265,089.31

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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.