Home / 239,716.48-330,807.36-139,112.32

Finding the Fourth Proportional to 239,716.48, 330,807.36 and 139,112.32

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Solution

The fourth proportional to 239,716.48, 330,807.36 and 139,112.32 is: 191,974.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,716.48 : 330,807.36 = 139,112.32 : x
  2. Step 2: Convert to fraction form
    239,716.48/330,807.36 = 139,112.32/x
  3. Step 3: Cross multiply
    239,716.48x = 330,807.36 × 139,112.32
  4. Step 4: Simplify right side
    239,716.48x = 46,019,379,322.68
  5. Step 5: Solve for x
    x = 46,019,379,322.68/239,716.48
  6. Step 6: Final answer
    x = 191,974.20

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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.