Home / 257,947.77-355,968.62-143,226.64

Finding the Fourth Proportional to 257,947.77, 355,968.62 and 143,226.64

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Solution

The fourth proportional to 257,947.77, 355,968.62 and 143,226.64 is: 197,653.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,947.77 : 355,968.62 = 143,226.64 : x
  2. Step 2: Convert to fraction form
    257,947.77/355,968.62 = 143,226.64/x
  3. Step 3: Cross multiply
    257,947.77x = 355,968.62 × 143,226.64
  4. Step 4: Simplify right side
    257,947.77x = 50,984,189,388.04
  5. Step 5: Solve for x
    x = 50,984,189,388.04/257,947.77
  6. Step 6: Final answer
    x = 197,653.15

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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.