Finding the Fourth Proportional to 240,203.31, 331,513.50 and 138,226.68
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Solution
The fourth proportional to 240,203.31, 331,513.50 and 138,226.68 is: 190,771.77
Step by Step Solution
- Step 1: Write the proportion equation
240,203.31 : 331,513.50 = 138,226.68 : x - Step 2: Convert to fraction form
240,203.31/331,513.50 = 138,226.68/x - Step 3: Cross multiply
240,203.31x = 331,513.50 × 138,226.68 - Step 4: Simplify right side
240,203.31x = 45,824,010,480.18 - Step 5: Solve for x
x = 45,824,010,480.18/240,203.31 - Step 6: Final answer
x = 190,771.77
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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.