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Finding the Fourth Proportional to 505,636.80, 758,316.96 and 190,069.44

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Solution

The fourth proportional to 505,636.80, 758,316.96 and 190,069.44 is: 285,052.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,636.80 : 758,316.96 = 190,069.44 : x
  2. Step 2: Convert to fraction form
    505,636.80/758,316.96 = 190,069.44/x
  3. Step 3: Cross multiply
    505,636.80x = 758,316.96 × 190,069.44
  4. Step 4: Simplify right side
    505,636.80x = 144,132,879,929.70
  5. Step 5: Solve for x
    x = 144,132,879,929.70/505,636.80
  6. Step 6: Final answer
    x = 285,052.20

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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.