Finding the Fourth Proportional to 282,371.32, 389,699.48 and 161,488.99
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Solution
The fourth proportional to 282,371.32, 389,699.48 and 161,488.99 is: 222,870.29
Step by Step Solution
- Step 1: Write the proportion equation
282,371.32 : 389,699.48 = 161,488.99 : x - Step 2: Convert to fraction form
282,371.32/389,699.48 = 161,488.99/x - Step 3: Cross multiply
282,371.32x = 389,699.48 × 161,488.99 - Step 4: Simplify right side
282,371.32x = 62,932,175,865.38 - Step 5: Solve for x
x = 62,932,175,865.38/282,371.32 - Step 6: Final answer
x = 222,870.29
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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.