Finding the Fourth Proportional to 188,964.81, 282,781.49 and 117,920.88
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Solution
The fourth proportional to 188,964.81, 282,781.49 and 117,920.88 is: 176,465.88
Step by Step Solution
- Step 1: Write the proportion equation
188,964.81 : 282,781.49 = 117,920.88 : x - Step 2: Convert to fraction form
188,964.81/282,781.49 = 117,920.88/x - Step 3: Cross multiply
188,964.81x = 282,781.49 × 117,920.88 - Step 4: Simplify right side
188,964.81x = 33,345,841,558.91 - Step 5: Solve for x
x = 33,345,841,558.91/188,964.81 - Step 6: Final answer
x = 176,465.88
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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.