Finding the Fourth Proportional to 209,135.16, 288,583.10 and 118,471.71
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Solution
The fourth proportional to 209,135.16, 288,583.10 and 118,471.71 is: 163,477.70
Step by Step Solution
- Step 1: Write the proportion equation
209,135.16 : 288,583.10 = 118,471.71 : x - Step 2: Convert to fraction form
209,135.16/288,583.10 = 118,471.71/x - Step 3: Cross multiply
209,135.16x = 288,583.10 × 118,471.71 - Step 4: Simplify right side
209,135.16x = 34,188,934,268.20 - Step 5: Solve for x
x = 34,188,934,268.20/209,135.16 - Step 6: Final answer
x = 163,477.70
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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.