Finding the Fourth Proportional to 207,911.28, 286,916.17 and 117,267.99
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Solution
The fourth proportional to 207,911.28, 286,916.17 and 117,267.99 is: 161,829.04
Step by Step Solution
- Step 1: Write the proportion equation
207,911.28 : 286,916.17 = 117,267.99 : x - Step 2: Convert to fraction form
207,911.28/286,916.17 = 117,267.99/x - Step 3: Cross multiply
207,911.28x = 286,916.17 × 117,267.99 - Step 4: Simplify right side
207,911.28x = 33,646,082,554.40 - Step 5: Solve for x
x = 33,646,082,554.40/207,911.28 - Step 6: Final answer
x = 161,829.04
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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.