Finding the Fourth Proportional to 220,109.90, 302,582.16 and 189,369.99
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Solution
The fourth proportional to 220,109.90, 302,582.16 and 189,369.99 is: 260,324.42
Step by Step Solution
- Step 1: Write the proportion equation
220,109.90 : 302,582.16 = 189,369.99 : x - Step 2: Convert to fraction form
220,109.90/302,582.16 = 189,369.99/x - Step 3: Cross multiply
220,109.90x = 302,582.16 × 189,369.99 - Step 4: Simplify right side
220,109.90x = 57,299,980,613.38 - Step 5: Solve for x
x = 57,299,980,613.38/220,109.90 - Step 6: Final answer
x = 260,324.42
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.