Home / 285,397.44-393,851.36-172,198.32

Finding the Fourth Proportional to 285,397.44, 393,851.36 and 172,198.32

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Solution

The fourth proportional to 285,397.44, 393,851.36 and 172,198.32 is: 237,635.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,397.44 : 393,851.36 = 172,198.32 : x
  2. Step 2: Convert to fraction form
    285,397.44/393,851.36 = 172,198.32/x
  3. Step 3: Cross multiply
    285,397.44x = 393,851.36 × 172,198.32
  4. Step 4: Simplify right side
    285,397.44x = 67,820,541,660.72
  5. Step 5: Solve for x
    x = 67,820,541,660.72/285,397.44
  6. Step 6: Final answer
    x = 237,635.42

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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.