Finding the Fourth Proportional to 399,093.05, 550,750.05 and 217,808.81
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Solution
The fourth proportional to 399,093.05, 550,750.05 and 217,808.81 is: 300,577.05
Step by Step Solution
- Step 1: Write the proportion equation
399,093.05 : 550,750.05 = 217,808.81 : x - Step 2: Convert to fraction form
399,093.05/550,750.05 = 217,808.81/x - Step 3: Cross multiply
399,093.05x = 550,750.05 × 217,808.81 - Step 4: Simplify right side
399,093.05x = 119,958,210,244.19 - Step 5: Solve for x
x = 119,958,210,244.19/399,093.05 - Step 6: Final answer
x = 300,577.05
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.