Finding the Fourth Proportional to 210,953.96, 291,105.29 and 115,442.20
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Solution
The fourth proportional to 210,953.96, 291,105.29 and 115,442.20 is: 159,304.12
Step by Step Solution
- Step 1: Write the proportion equation
210,953.96 : 291,105.29 = 115,442.20 : x - Step 2: Convert to fraction form
210,953.96/291,105.29 = 115,442.20/x - Step 3: Cross multiply
210,953.96x = 291,105.29 × 115,442.20 - Step 4: Simplify right side
210,953.96x = 33,605,835,109.24 - Step 5: Solve for x
x = 33,605,835,109.24/210,953.96 - Step 6: Final answer
x = 159,304.12
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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.