Finding the Fourth Proportional to 213,325.26, 319,763.04 and 86,916.66
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Solution
The fourth proportional to 213,325.26, 319,763.04 and 86,916.66 is: 130,283.38
Step by Step Solution
- Step 1: Write the proportion equation
213,325.26 : 319,763.04 = 86,916.66 : x - Step 2: Convert to fraction form
213,325.26/319,763.04 = 86,916.66/x - Step 3: Cross multiply
213,325.26x = 319,763.04 × 86,916.66 - Step 4: Simplify right side
213,325.26x = 27,792,735,428.25 - Step 5: Solve for x
x = 27,792,735,428.25/213,325.26 - Step 6: Final answer
x = 130,283.38
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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.