Finding the Fourth Proportional to 215,748.64, 297,743.34 and 120,256.12
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Solution
The fourth proportional to 215,748.64, 297,743.34 and 120,256.12 is: 165,959.14
Step by Step Solution
- Step 1: Write the proportion equation
215,748.64 : 297,743.34 = 120,256.12 : x - Step 2: Convert to fraction form
215,748.64/297,743.34 = 120,256.12/x - Step 3: Cross multiply
215,748.64x = 297,743.34 × 120,256.12 - Step 4: Simplify right side
215,748.64x = 35,805,458,824.24 - Step 5: Solve for x
x = 35,805,458,824.24/215,748.64 - Step 6: Final answer
x = 165,959.14
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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.