Home / 286,359.90-395,208.00-163,863.60

Finding the Fourth Proportional to 286,359.90, 395,208.00 and 163,863.60

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Solution

The fourth proportional to 286,359.90, 395,208.00 and 163,863.60 is: 226,149.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,359.90 : 395,208.00 = 163,863.60 : x
  2. Step 2: Convert to fraction form
    286,359.90/395,208.00 = 163,863.60/x
  3. Step 3: Cross multiply
    286,359.90x = 395,208.00 × 163,863.60
  4. Step 4: Simplify right side
    286,359.90x = 64,760,204,809.48
  5. Step 5: Solve for x
    x = 64,760,204,809.48/286,359.90
  6. Step 6: Final answer
    x = 226,149.70

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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.