Finding the Fourth Proportional to 213,135.12, 294,117.75 and 117,640.53
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Solution
The fourth proportional to 213,135.12, 294,117.75 and 117,640.53 is: 162,339.12
Step by Step Solution
- Step 1: Write the proportion equation
213,135.12 : 294,117.75 = 117,640.53 : x - Step 2: Convert to fraction form
213,135.12/294,117.75 = 117,640.53/x - Step 3: Cross multiply
213,135.12x = 294,117.75 × 117,640.53 - Step 4: Simplify right side
213,135.12x = 34,600,167,992.41 - Step 5: Solve for x
x = 34,600,167,992.41/213,135.12 - Step 6: Final answer
x = 162,339.12
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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.