Home / 205,542.80-308,314.20-134,579.60

Finding the Fourth Proportional to 205,542.80, 308,314.20 and 134,579.60

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Solution

The fourth proportional to 205,542.80, 308,314.20 and 134,579.60 is: 201,869.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,542.80 : 308,314.20 = 134,579.60 : x
  2. Step 2: Convert to fraction form
    205,542.80/308,314.20 = 134,579.60/x
  3. Step 3: Cross multiply
    205,542.80x = 308,314.20 × 134,579.60
  4. Step 4: Simplify right side
    205,542.80x = 41,492,801,710.32
  5. Step 5: Solve for x
    x = 41,492,801,710.32/205,542.80
  6. Step 6: Final answer
    x = 201,869.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.