Home / 257,976.60-355,987.35-143,244.42

Finding the Fourth Proportional to 257,976.60, 355,987.35 and 143,244.42

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Solution

The fourth proportional to 257,976.60, 355,987.35 and 143,244.42 is: 197,666.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,976.60 : 355,987.35 = 143,244.42 : x
  2. Step 2: Convert to fraction form
    257,976.60/355,987.35 = 143,244.42/x
  3. Step 3: Cross multiply
    257,976.60x = 355,987.35 × 143,244.42
  4. Step 4: Simplify right side
    257,976.60x = 50,993,201,478.09
  5. Step 5: Solve for x
    x = 50,993,201,478.09/257,976.60
  6. Step 6: Final answer
    x = 197,666.00

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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.