Home / 378,867.32-522,816.46-235,623.32

Finding the Fourth Proportional to 378,867.32, 522,816.46 and 235,623.32

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Solution

The fourth proportional to 378,867.32, 522,816.46 and 235,623.32 is: 325,147.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,867.32 : 522,816.46 = 235,623.32 : x
  2. Step 2: Convert to fraction form
    378,867.32/522,816.46 = 235,623.32/x
  3. Step 3: Cross multiply
    378,867.32x = 522,816.46 × 235,623.32
  4. Step 4: Simplify right side
    378,867.32x = 123,187,750,055.85
  5. Step 5: Solve for x
    x = 123,187,750,055.85/378,867.32
  6. Step 6: Final answer
    x = 325,147.47

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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.