Home / 223,021.05-307,542.83-190,862.41

Finding the Fourth Proportional to 223,021.05, 307,542.83 and 190,862.41

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Solution

The fourth proportional to 223,021.05, 307,542.83 and 190,862.41 is: 263,196.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,021.05 : 307,542.83 = 190,862.41 : x
  2. Step 2: Convert to fraction form
    223,021.05/307,542.83 = 190,862.41/x
  3. Step 3: Cross multiply
    223,021.05x = 307,542.83 × 190,862.41
  4. Step 4: Simplify right side
    223,021.05x = 58,698,367,070.74
  5. Step 5: Solve for x
    x = 58,698,367,070.74/223,021.05
  6. Step 6: Final answer
    x = 263,196.53

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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.