Home / 330,105.74-455,556.84-186,862.82

Finding the Fourth Proportional to 330,105.74, 455,556.84 and 186,862.82

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Solution

The fourth proportional to 330,105.74, 455,556.84 and 186,862.82 is: 257,876.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,105.74 : 455,556.84 = 186,862.82 : x
  2. Step 2: Convert to fraction form
    330,105.74/455,556.84 = 186,862.82/x
  3. Step 3: Cross multiply
    330,105.74x = 455,556.84 × 186,862.82
  4. Step 4: Simplify right side
    330,105.74x = 85,126,635,792.69
  5. Step 5: Solve for x
    x = 85,126,635,792.69/330,105.74
  6. Step 6: Final answer
    x = 257,876.87

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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.