Finding the Fourth Proportional to 407,518.86, 611,249.42 and 107,992.80
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Solution
The fourth proportional to 407,518.86, 611,249.42 and 107,992.80 is: 161,981.55
Step by Step Solution
- Step 1: Write the proportion equation
407,518.86 : 611,249.42 = 107,992.80 : x - Step 2: Convert to fraction form
407,518.86/611,249.42 = 107,992.80/x - Step 3: Cross multiply
407,518.86x = 611,249.42 × 107,992.80 - Step 4: Simplify right side
407,518.86x = 66,010,536,364.18 - Step 5: Solve for x
x = 66,010,536,364.18/407,518.86 - Step 6: Final answer
x = 161,981.55
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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.