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Finding the Fourth Proportional to 285,033.73, 393,175.16 and 188,238.48

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Solution

The fourth proportional to 285,033.73, 393,175.16 and 188,238.48 is: 259,655.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,033.73 : 393,175.16 = 188,238.48 : x
  2. Step 2: Convert to fraction form
    285,033.73/393,175.16 = 188,238.48/x
  3. Step 3: Cross multiply
    285,033.73x = 393,175.16 × 188,238.48
  4. Step 4: Simplify right side
    285,033.73x = 74,010,693,841.29
  5. Step 5: Solve for x
    x = 74,010,693,841.29/285,033.73
  6. Step 6: Final answer
    x = 259,655.92

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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.