Finding the Fourth Proportional to 209,438.19, 289,012.48 and 117,548.94
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Solution
The fourth proportional to 209,438.19, 289,012.48 and 117,548.94 is: 162,210.67
Step by Step Solution
- Step 1: Write the proportion equation
209,438.19 : 289,012.48 = 117,548.94 : x - Step 2: Convert to fraction form
209,438.19/289,012.48 = 117,548.94/x - Step 3: Cross multiply
209,438.19x = 289,012.48 × 117,548.94 - Step 4: Simplify right side
209,438.19x = 33,973,109,518.06 - Step 5: Solve for x
x = 33,973,109,518.06/209,438.19 - Step 6: Final answer
x = 162,210.67
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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.