Finding the Fourth Proportional to 213,517.70, 294,641.76 and 118,018.70
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Solution
The fourth proportional to 213,517.70, 294,641.76 and 118,018.70 is: 162,858.81
Step by Step Solution
- Step 1: Write the proportion equation
213,517.70 : 294,641.76 = 118,018.70 : x - Step 2: Convert to fraction form
213,517.70/294,641.76 = 118,018.70/x - Step 3: Cross multiply
213,517.70x = 294,641.76 × 118,018.70 - Step 4: Simplify right side
213,517.70x = 34,773,237,480.91 - Step 5: Solve for x
x = 34,773,237,480.91/213,517.70 - Step 6: Final answer
x = 162,858.81
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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.