Finding the Fourth Proportional to 200,139.29, 276,292.16 and 115,239.95
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Solution
The fourth proportional to 200,139.29, 276,292.16 and 115,239.95 is: 159,088.68
Step by Step Solution
- Step 1: Write the proportion equation
200,139.29 : 276,292.16 = 115,239.95 : x - Step 2: Convert to fraction form
200,139.29/276,292.16 = 115,239.95/x - Step 3: Cross multiply
200,139.29x = 276,292.16 × 115,239.95 - Step 4: Simplify right side
200,139.29x = 31,839,894,862.60 - Step 5: Solve for x
x = 31,839,894,862.60/200,139.29 - Step 6: Final answer
x = 159,088.68
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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.