Finding the Fourth Proportional to 289,291.49, 434,006.52 and 120,718.05
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Solution
The fourth proportional to 289,291.49, 434,006.52 and 120,718.05 is: 181,105.99
Step by Step Solution
- Step 1: Write the proportion equation
289,291.49 : 434,006.52 = 120,718.05 : x - Step 2: Convert to fraction form
289,291.49/434,006.52 = 120,718.05/x - Step 3: Cross multiply
289,291.49x = 434,006.52 × 120,718.05 - Step 4: Simplify right side
289,291.49x = 52,392,420,781.69 - Step 5: Solve for x
x = 52,392,420,781.69/289,291.49 - Step 6: Final answer
x = 181,105.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.