Finding the Fourth Proportional to 355,302.09, 490,269.65 and 228,149.91
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Solution
The fourth proportional to 355,302.09, 490,269.65 and 228,149.91 is: 314,816.54
Step by Step Solution
- Step 1: Write the proportion equation
355,302.09 : 490,269.65 = 228,149.91 : x - Step 2: Convert to fraction form
355,302.09/490,269.65 = 228,149.91/x - Step 3: Cross multiply
355,302.09x = 490,269.65 × 228,149.91 - Step 4: Simplify right side
355,302.09x = 111,854,975,382.48 - Step 5: Solve for x
x = 111,854,975,382.48/355,302.09 - Step 6: Final answer
x = 314,816.54
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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.