Finding the Fourth Proportional to 215,876.10, 323,811.99 and 121,106.10
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Solution
The fourth proportional to 215,876.10, 323,811.99 and 121,106.10 is: 181,657.94
Step by Step Solution
- Step 1: Write the proportion equation
215,876.10 : 323,811.99 = 121,106.10 : x - Step 2: Convert to fraction form
215,876.10/323,811.99 = 121,106.10/x - Step 3: Cross multiply
215,876.10x = 323,811.99 × 121,106.10 - Step 4: Simplify right side
215,876.10x = 39,215,607,242.14 - Step 5: Solve for x
x = 39,215,607,242.14/215,876.10 - Step 6: Final answer
x = 181,657.94
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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.