Finding the Fourth Proportional to 215,764.99, 297,749.48 and 120,269.63
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Solution
The fourth proportional to 215,764.99, 297,749.48 and 120,269.63 is: 165,968.64
Step by Step Solution
- Step 1: Write the proportion equation
215,764.99 : 297,749.48 = 120,269.63 : x - Step 2: Convert to fraction form
215,764.99/297,749.48 = 120,269.63/x - Step 3: Cross multiply
215,764.99x = 297,749.48 × 120,269.63 - Step 4: Simplify right side
215,764.99x = 35,810,220,837.34 - Step 5: Solve for x
x = 35,810,220,837.34/215,764.99 - Step 6: Final answer
x = 165,968.64
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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.