Home / 255,650.97-353,436.07-191,878.05

Finding the Fourth Proportional to 255,650.97, 353,436.07 and 191,878.05

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Solution

The fourth proportional to 255,650.97, 353,436.07 and 191,878.05 is: 265,270.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,650.97 : 353,436.07 = 191,878.05 : x
  2. Step 2: Convert to fraction form
    255,650.97/353,436.07 = 191,878.05/x
  3. Step 3: Cross multiply
    255,650.97x = 353,436.07 × 191,878.05
  4. Step 4: Simplify right side
    255,650.97x = 67,816,623,911.26
  5. Step 5: Solve for x
    x = 67,816,623,911.26/255,650.97
  6. Step 6: Final answer
    x = 265,270.36

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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.