Home / 257,874.03-355,866.75-143,154.36

Finding the Fourth Proportional to 257,874.03, 355,866.75 and 143,154.36

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Solution

The fourth proportional to 257,874.03, 355,866.75 and 143,154.36 is: 197,553.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,874.03 : 355,866.75 = 143,154.36 : x
  2. Step 2: Convert to fraction form
    257,874.03/355,866.75 = 143,154.36/x
  3. Step 3: Cross multiply
    257,874.03x = 355,866.75 × 143,154.36
  4. Step 4: Simplify right side
    257,874.03x = 50,943,876,841.53
  5. Step 5: Solve for x
    x = 50,943,876,841.53/257,874.03
  6. Step 6: Final answer
    x = 197,553.34

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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.