Finding the Fourth Proportional to 228,409.42, 315,201.17 and 126,432.68
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Solution
The fourth proportional to 228,409.42, 315,201.17 and 126,432.68 is: 174,474.99
Step by Step Solution
- Step 1: Write the proportion equation
228,409.42 : 315,201.17 = 126,432.68 : x - Step 2: Convert to fraction form
228,409.42/315,201.17 = 126,432.68/x - Step 3: Cross multiply
228,409.42x = 315,201.17 × 126,432.68 - Step 4: Simplify right side
228,409.42x = 39,851,730,505.07 - Step 5: Solve for x
x = 39,851,730,505.07/228,409.42 - Step 6: Final answer
x = 174,474.99
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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.