Finding the Fourth Proportional to 228,349.18, 315,122.45 and 126,381.65
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Solution
The fourth proportional to 228,349.18, 315,122.45 and 126,381.65 is: 174,407.00
Step by Step Solution
- Step 1: Write the proportion equation
228,349.18 : 315,122.45 = 126,381.65 : x - Step 2: Convert to fraction form
228,349.18/315,122.45 = 126,381.65/x - Step 3: Cross multiply
228,349.18x = 315,122.45 × 126,381.65 - Step 4: Simplify right side
228,349.18x = 39,825,695,338.94 - Step 5: Solve for x
x = 39,825,695,338.94/228,349.18 - Step 6: Final answer
x = 174,407.00
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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.