Finding the Fourth Proportional to 228,989.80, 343,324.70 and 135,447.40
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Solution
The fourth proportional to 228,989.80, 343,324.70 and 135,447.40 is: 203,076.46
Step by Step Solution
- Step 1: Write the proportion equation
228,989.80 : 343,324.70 = 135,447.40 : x - Step 2: Convert to fraction form
228,989.80/343,324.70 = 135,447.40/x - Step 3: Cross multiply
228,989.80x = 343,324.70 × 135,447.40 - Step 4: Simplify right side
228,989.80x = 46,502,437,970.78 - Step 5: Solve for x
x = 46,502,437,970.78/228,989.80 - Step 6: Final answer
x = 203,076.46
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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.