Home / 257,876.03-355,869.51-143,156.36

Finding the Fourth Proportional to 257,876.03, 355,869.51 and 143,156.36

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Solution

The fourth proportional to 257,876.03, 355,869.51 and 143,156.36 is: 197,556.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,876.03 : 355,869.51 = 143,156.36 : x
  2. Step 2: Convert to fraction form
    257,876.03/355,869.51 = 143,156.36/x
  3. Step 3: Cross multiply
    257,876.03x = 355,869.51 × 143,156.36
  4. Step 4: Simplify right side
    257,876.03x = 50,944,983,686.58
  5. Step 5: Solve for x
    x = 50,944,983,686.58/257,876.03
  6. Step 6: Final answer
    x = 197,556.10

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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.