Home / 257,181.12-355,586.90-225,258.21

Finding the Fourth Proportional to 257,181.12, 355,586.90 and 225,258.21

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Solution

The fourth proportional to 257,181.12, 355,586.90 and 225,258.21 is: 311,449.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,181.12 : 355,586.90 = 225,258.21 : x
  2. Step 2: Convert to fraction form
    257,181.12/355,586.90 = 225,258.21/x
  3. Step 3: Cross multiply
    257,181.12x = 355,586.90 × 225,258.21
  4. Step 4: Simplify right side
    257,181.12x = 80,098,867,467.16
  5. Step 5: Solve for x
    x = 80,098,867,467.16/257,181.12
  6. Step 6: Final answer
    x = 311,449.25

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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.