Finding the Fourth Proportional to 209,756.42, 289,456.64 and 119,110.74
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Solution
The fourth proportional to 209,756.42, 289,456.64 and 119,110.74 is: 164,368.72
Step by Step Solution
- Step 1: Write the proportion equation
209,756.42 : 289,456.64 = 119,110.74 : x - Step 2: Convert to fraction form
209,756.42/289,456.64 = 119,110.74/x - Step 3: Cross multiply
209,756.42x = 289,456.64 × 119,110.74 - Step 4: Simplify right side
209,756.42x = 34,477,394,588.31 - Step 5: Solve for x
x = 34,477,394,588.31/209,756.42 - Step 6: Final answer
x = 164,368.72
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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.