Finding the Fourth Proportional to 193,299.81, 266,756.85 and 108,415.05
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Solution
The fourth proportional to 193,299.81, 266,756.85 and 108,415.05 is: 149,614.51
Step by Step Solution
- Step 1: Write the proportion equation
193,299.81 : 266,756.85 = 108,415.05 : x - Step 2: Convert to fraction form
193,299.81/266,756.85 = 108,415.05/x - Step 3: Cross multiply
193,299.81x = 266,756.85 × 108,415.05 - Step 4: Simplify right side
193,299.81x = 28,920,457,230.59 - Step 5: Solve for x
x = 28,920,457,230.59/193,299.81 - Step 6: Final answer
x = 149,614.51
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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.