Home / 285,397.62-393,851.61-172,198.50

Finding the Fourth Proportional to 285,397.62, 393,851.61 and 172,198.50

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Solution

The fourth proportional to 285,397.62, 393,851.61 and 172,198.50 is: 237,635.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,397.62 : 393,851.61 = 172,198.50 : x
  2. Step 2: Convert to fraction form
    285,397.62/393,851.61 = 172,198.50/x
  3. Step 3: Cross multiply
    285,397.62x = 393,851.61 × 172,198.50
  4. Step 4: Simplify right side
    285,397.62x = 67,820,656,464.59
  5. Step 5: Solve for x
    x = 67,820,656,464.59/285,397.62
  6. Step 6: Final answer
    x = 237,635.68

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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.