Home / 313,255.20-432,186.96-200,144.16

Finding the Fourth Proportional to 313,255.20, 432,186.96 and 200,144.16

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Solution

The fourth proportional to 313,255.20, 432,186.96 and 200,144.16 is: 276,131.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,255.20 : 432,186.96 = 200,144.16 : x
  2. Step 2: Convert to fraction form
    313,255.20/432,186.96 = 200,144.16/x
  3. Step 3: Cross multiply
    313,255.20x = 432,186.96 × 200,144.16
  4. Step 4: Simplify right side
    313,255.20x = 86,499,696,072.15
  5. Step 5: Solve for x
    x = 86,499,696,072.15/313,255.20
  6. Step 6: Final answer
    x = 276,131.72

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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.