Finding the Fourth Proportional to 286,778.54, 395,803.94 and 165,986.44
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Solution
The fourth proportional to 286,778.54, 395,803.94 and 165,986.44 is: 229,089.96
Step by Step Solution
- Step 1: Write the proportion equation
286,778.54 : 395,803.94 = 165,986.44 : x - Step 2: Convert to fraction form
286,778.54/395,803.94 = 165,986.44/x - Step 3: Cross multiply
286,778.54x = 395,803.94 × 165,986.44 - Step 4: Simplify right side
286,778.54x = 65,698,085,119.13 - Step 5: Solve for x
x = 65,698,085,119.13/286,778.54 - Step 6: Final answer
x = 229,089.96
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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.