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Finding the Fourth Proportional to 188,980.38, 283,300.39 and 68,953.55

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Solution

The fourth proportional to 188,980.38, 283,300.39 and 68,953.55 is: 103,368.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,980.38 : 283,300.39 = 68,953.55 : x
  2. Step 2: Convert to fraction form
    188,980.38/283,300.39 = 68,953.55/x
  3. Step 3: Cross multiply
    188,980.38x = 283,300.39 × 68,953.55
  4. Step 4: Simplify right side
    188,980.38x = 19,534,566,922.64
  5. Step 5: Solve for x
    x = 19,534,566,922.64/188,980.38
  6. Step 6: Final answer
    x = 103,368.23

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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.