Finding the Fourth Proportional to 240,288.66, 331,590.21 and 138,299.97
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Solution
The fourth proportional to 240,288.66, 331,590.21 and 138,299.97 is: 190,849.28
Step by Step Solution
- Step 1: Write the proportion equation
240,288.66 : 331,590.21 = 138,299.97 : x - Step 2: Convert to fraction form
240,288.66/331,590.21 = 138,299.97/x - Step 3: Cross multiply
240,288.66x = 331,590.21 × 138,299.97 - Step 4: Simplify right side
240,288.66x = 45,858,916,820.13 - Step 5: Solve for x
x = 45,858,916,820.13/240,288.66 - Step 6: Final answer
x = 190,849.28
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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.