Home / 257,848.28-355,825.08-143,120.24

Finding the Fourth Proportional to 257,848.28, 355,825.08 and 143,120.24

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Solution

The fourth proportional to 257,848.28, 355,825.08 and 143,120.24 is: 197,502.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,848.28 : 355,825.08 = 143,120.24 : x
  2. Step 2: Convert to fraction form
    257,848.28/355,825.08 = 143,120.24/x
  3. Step 3: Cross multiply
    257,848.28x = 355,825.08 × 143,120.24
  4. Step 4: Simplify right side
    257,848.28x = 50,925,770,847.62
  5. Step 5: Solve for x
    x = 50,925,770,847.62/257,848.28
  6. Step 6: Final answer
    x = 197,502.85

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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.