Finding the Fourth Proportional to 408,187.15, 611,988.11 and 191,924.84
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Solution
The fourth proportional to 408,187.15, 611,988.11 and 191,924.84 is: 287,749.68
Step by Step Solution
- Step 1: Write the proportion equation
408,187.15 : 611,988.11 = 191,924.84 : x - Step 2: Convert to fraction form
408,187.15/611,988.11 = 191,924.84/x - Step 3: Cross multiply
408,187.15x = 611,988.11 × 191,924.84 - Step 4: Simplify right side
408,187.15x = 117,455,721,383.72 - Step 5: Solve for x
x = 117,455,721,383.72/408,187.15 - Step 6: Final answer
x = 287,749.68
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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.