Home / 280,967.28-388,054.20-188,926.44

Finding the Fourth Proportional to 280,967.28, 388,054.20 and 188,926.44

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Solution

The fourth proportional to 280,967.28, 388,054.20 and 188,926.44 is: 260,933.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,967.28 : 388,054.20 = 188,926.44 : x
  2. Step 2: Convert to fraction form
    280,967.28/388,054.20 = 188,926.44/x
  3. Step 3: Cross multiply
    280,967.28x = 388,054.20 × 188,926.44
  4. Step 4: Simplify right side
    280,967.28x = 73,313,698,533.05
  5. Step 5: Solve for x
    x = 73,313,698,533.05/280,967.28
  6. Step 6: Final answer
    x = 260,933.23

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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.