Home / 257,848.57-355,813.21-143,118.19

Finding the Fourth Proportional to 257,848.57, 355,813.21 and 143,118.19

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Solution

The fourth proportional to 257,848.57, 355,813.21 and 143,118.19 is: 197,493.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,848.57 : 355,813.21 = 143,118.19 : x
  2. Step 2: Convert to fraction form
    257,848.57/355,813.21 = 143,118.19/x
  3. Step 3: Cross multiply
    257,848.57x = 355,813.21 × 143,118.19
  4. Step 4: Simplify right side
    257,848.57x = 50,923,342,593.29
  5. Step 5: Solve for x
    x = 50,923,342,593.29/257,848.57
  6. Step 6: Final answer
    x = 197,493.21

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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.