Finding the Fourth Proportional to 221,646.26, 332,317.53 and 79,488.49
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Solution
The fourth proportional to 221,646.26, 332,317.53 and 79,488.49 is: 119,178.27
Step by Step Solution
- Step 1: Write the proportion equation
221,646.26 : 332,317.53 = 79,488.49 : x - Step 2: Convert to fraction form
221,646.26/332,317.53 = 79,488.49/x - Step 3: Cross multiply
221,646.26x = 332,317.53 × 79,488.49 - Step 4: Simplify right side
221,646.26x = 26,415,418,660.23 - Step 5: Solve for x
x = 26,415,418,660.23/221,646.26 - Step 6: Final answer
x = 119,178.27
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.