Finding the Fourth Proportional to 286,933.73, 395,971.56 and 157,873.88
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Solution
The fourth proportional to 286,933.73, 395,971.56 and 157,873.88 is: 217,867.62
Step by Step Solution
- Step 1: Write the proportion equation
286,933.73 : 395,971.56 = 157,873.88 : x - Step 2: Convert to fraction form
286,933.73/395,971.56 = 157,873.88/x - Step 3: Cross multiply
286,933.73x = 395,971.56 × 157,873.88 - Step 4: Simplify right side
286,933.73x = 62,513,567,536.78 - Step 5: Solve for x
x = 62,513,567,536.78/286,933.73 - Step 6: Final answer
x = 217,867.62
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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.