Finding the Fourth Proportional to 231,668.75, 319,888.86 and 186,201.02
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Solution
The fourth proportional to 231,668.75, 319,888.86 and 186,201.02 is: 257,106.89
Step by Step Solution
- Step 1: Write the proportion equation
231,668.75 : 319,888.86 = 186,201.02 : x - Step 2: Convert to fraction form
231,668.75/319,888.86 = 186,201.02/x - Step 3: Cross multiply
231,668.75x = 319,888.86 × 186,201.02 - Step 4: Simplify right side
231,668.75x = 59,563,630,419.19 - Step 5: Solve for x
x = 59,563,630,419.19/231,668.75 - Step 6: Final answer
x = 257,106.89
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1.5x scale
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.