Finding the Fourth Proportional to 210,363.49, 315,660.05 and 121,789.99
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Solution
The fourth proportional to 210,363.49, 315,660.05 and 121,789.99 is: 182,751.46
Step by Step Solution
- Step 1: Write the proportion equation
210,363.49 : 315,660.05 = 121,789.99 : x - Step 2: Convert to fraction form
210,363.49/315,660.05 = 121,789.99/x - Step 3: Cross multiply
210,363.49x = 315,660.05 × 121,789.99 - Step 4: Simplify right side
210,363.49x = 38,444,234,575.24 - Step 5: Solve for x
x = 38,444,234,575.24/210,363.49 - Step 6: Final answer
x = 182,751.46
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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.