Finding the Fourth Proportional to 212,085.18, 292,683.16 and 115,295.56
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Solution
The fourth proportional to 212,085.18, 292,683.16 and 115,295.56 is: 159,110.92
Step by Step Solution
- Step 1: Write the proportion equation
212,085.18 : 292,683.16 = 115,295.56 : x - Step 2: Convert to fraction form
212,085.18/292,683.16 = 115,295.56/x - Step 3: Cross multiply
212,085.18x = 292,683.16 × 115,295.56 - Step 4: Simplify right side
212,085.18x = 33,745,068,834.77 - Step 5: Solve for x
x = 33,745,068,834.77/212,085.18 - Step 6: Final answer
x = 159,110.92
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1.5x scale
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.