Finding the Fourth Proportional to 286,937.91, 395,968.64 and 157,871.07
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Solution
The fourth proportional to 286,937.91, 395,968.64 and 157,871.07 is: 217,858.95
Step by Step Solution
- Step 1: Write the proportion equation
286,937.91 : 395,968.64 = 157,871.07 : x - Step 2: Convert to fraction form
286,937.91/395,968.64 = 157,871.07/x - Step 3: Cross multiply
286,937.91x = 395,968.64 × 157,871.07 - Step 4: Simplify right side
286,937.91x = 62,511,992,093.89 - Step 5: Solve for x
x = 62,511,992,093.89/286,937.91 - Step 6: Final answer
x = 217,858.95
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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.