Finding the Fourth Proportional to 220,514.18, 304,402.71 and 148,991.10
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Solution
The fourth proportional to 220,514.18, 304,402.71 and 148,991.10 is: 205,670.65
Step by Step Solution
- Step 1: Write the proportion equation
220,514.18 : 304,402.71 = 148,991.10 : x - Step 2: Convert to fraction form
220,514.18/304,402.71 = 148,991.10/x - Step 3: Cross multiply
220,514.18x = 304,402.71 × 148,991.10 - Step 4: Simplify right side
220,514.18x = 45,353,294,605.88 - Step 5: Solve for x
x = 45,353,294,605.88/220,514.18 - Step 6: Final answer
x = 205,670.65
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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.