Finding the Fourth Proportional to 219,881.82, 303,444.36 and 129,236.50
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Solution
The fourth proportional to 219,881.82, 303,444.36 and 129,236.50 is: 178,350.75
Step by Step Solution
- Step 1: Write the proportion equation
219,881.82 : 303,444.36 = 129,236.50 : x - Step 2: Convert to fraction form
219,881.82/303,444.36 = 129,236.50/x - Step 3: Cross multiply
219,881.82x = 303,444.36 × 129,236.50 - Step 4: Simplify right side
219,881.82x = 39,216,087,031.14 - Step 5: Solve for x
x = 39,216,087,031.14/219,881.82 - Step 6: Final answer
x = 178,350.75
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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.