Finding the Fourth Proportional to 235,691.84, 325,251.36 and 129,707.84
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Solution
The fourth proportional to 235,691.84, 325,251.36 and 129,707.84 is: 178,994.96
Step by Step Solution
- Step 1: Write the proportion equation
235,691.84 : 325,251.36 = 129,707.84 : x - Step 2: Convert to fraction form
235,691.84/325,251.36 = 129,707.84/x - Step 3: Cross multiply
235,691.84x = 325,251.36 × 129,707.84 - Step 4: Simplify right side
235,691.84x = 42,187,651,362.66 - Step 5: Solve for x
x = 42,187,651,362.66/235,691.84 - Step 6: Final answer
x = 178,994.96
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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.