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Finding the Fourth Proportional to 188,284.91, 259,838.48 and 103,407.44

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Solution

The fourth proportional to 188,284.91, 259,838.48 and 103,407.44 is: 142,705.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,284.91 : 259,838.48 = 103,407.44 : x
  2. Step 2: Convert to fraction form
    188,284.91/259,838.48 = 103,407.44/x
  3. Step 3: Cross multiply
    188,284.91x = 259,838.48 × 103,407.44
  4. Step 4: Simplify right side
    188,284.91x = 26,869,230,989.62
  5. Step 5: Solve for x
    x = 26,869,230,989.62/188,284.91
  6. Step 6: Final answer
    x = 142,705.18

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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.