Home / 257,926.42-355,939.86-143,206.84

Finding the Fourth Proportional to 257,926.42, 355,939.86 and 143,206.84

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Solution

The fourth proportional to 257,926.42, 355,939.86 and 143,206.84 is: 197,626.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,926.42 : 355,939.86 = 143,206.84 : x
  2. Step 2: Convert to fraction form
    257,926.42/355,939.86 = 143,206.84/x
  3. Step 3: Cross multiply
    257,926.42x = 355,939.86 × 143,206.84
  4. Step 4: Simplify right side
    257,926.42x = 50,973,022,580.64
  5. Step 5: Solve for x
    x = 50,973,022,580.64/257,926.42
  6. Step 6: Final answer
    x = 197,626.22

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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.