Home / 259,243.68-388,924.56-90,772.32

Finding the Fourth Proportional to 259,243.68, 388,924.56 and 90,772.32

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Solution

The fourth proportional to 259,243.68, 388,924.56 and 90,772.32 is: 136,179.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,243.68 : 388,924.56 = 90,772.32 : x
  2. Step 2: Convert to fraction form
    259,243.68/388,924.56 = 90,772.32/x
  3. Step 3: Cross multiply
    259,243.68x = 388,924.56 × 90,772.32
  4. Step 4: Simplify right side
    259,243.68x = 35,303,584,616.18
  5. Step 5: Solve for x
    x = 35,303,584,616.18/259,243.68
  6. Step 6: Final answer
    x = 136,179.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.