Home / 317,491.14-438,105.87-190,163.46

Finding the Fourth Proportional to 317,491.14, 438,105.87 and 190,163.46

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Solution

The fourth proportional to 317,491.14, 438,105.87 and 190,163.46 is: 262,406.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,491.14 : 438,105.87 = 190,163.46 : x
  2. Step 2: Convert to fraction form
    317,491.14/438,105.87 = 190,163.46/x
  3. Step 3: Cross multiply
    317,491.14x = 438,105.87 × 190,163.46
  4. Step 4: Simplify right side
    317,491.14x = 83,311,728,085.51
  5. Step 5: Solve for x
    x = 83,311,728,085.51/317,491.14
  6. Step 6: Final answer
    x = 262,406.47

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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.