Finding the Fourth Proportional to 205,894.97, 284,139.87 and 115,248.68
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Solution
The fourth proportional to 205,894.97, 284,139.87 and 115,248.68 is: 159,045.87
Step by Step Solution
- Step 1: Write the proportion equation
205,894.97 : 284,139.87 = 115,248.68 : x - Step 2: Convert to fraction form
205,894.97/284,139.87 = 115,248.68/x - Step 3: Cross multiply
205,894.97x = 284,139.87 × 115,248.68 - Step 4: Simplify right side
205,894.97x = 32,746,744,952.87 - Step 5: Solve for x
x = 32,746,744,952.87/205,894.97 - Step 6: Final answer
x = 159,045.87
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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.