Finding the Fourth Proportional to 205,390.08, 308,135.68 and 121,219.84
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Solution
The fourth proportional to 205,390.08, 308,135.68 and 121,219.84 is: 181,859.60
Step by Step Solution
- Step 1: Write the proportion equation
205,390.08 : 308,135.68 = 121,219.84 : x - Step 2: Convert to fraction form
205,390.08/308,135.68 = 121,219.84/x - Step 3: Cross multiply
205,390.08x = 308,135.68 × 121,219.84 - Step 4: Simplify right side
205,390.08x = 37,352,157,827.89 - Step 5: Solve for x
x = 37,352,157,827.89/205,390.08 - Step 6: Final answer
x = 181,859.60
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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.