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Finding the Fourth Proportional to 348,829.60, 522,706.80 and 259,664.80

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Solution

The fourth proportional to 348,829.60, 522,706.80 and 259,664.80 is: 389,097.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,829.60 : 522,706.80 = 259,664.80 : x
  2. Step 2: Convert to fraction form
    348,829.60/522,706.80 = 259,664.80/x
  3. Step 3: Cross multiply
    348,829.60x = 522,706.80 × 259,664.80
  4. Step 4: Simplify right side
    348,829.60x = 135,728,556,680.64
  5. Step 5: Solve for x
    x = 135,728,556,680.64/348,829.60
  6. Step 6: Final answer
    x = 389,097.02

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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.