Finding the Fourth Proportional to 240,207.97, 331,487.07 and 131,312.78
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Solution
The fourth proportional to 240,207.97, 331,487.07 and 131,312.78 is: 181,211.68
Step by Step Solution
- Step 1: Write the proportion equation
240,207.97 : 331,487.07 = 131,312.78 : x - Step 2: Convert to fraction form
240,207.97/331,487.07 = 131,312.78/x - Step 3: Cross multiply
240,207.97x = 331,487.07 × 131,312.78 - Step 4: Simplify right side
240,207.97x = 43,528,488,695.75 - Step 5: Solve for x
x = 43,528,488,695.75/240,207.97 - Step 6: Final answer
x = 181,211.68
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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.