Finding the Fourth Proportional to 252,936.98, 349,048.74 and 138,213.08
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Solution
The fourth proportional to 252,936.98, 349,048.74 and 138,213.08 is: 190,731.70
Step by Step Solution
- Step 1: Write the proportion equation
252,936.98 : 349,048.74 = 138,213.08 : x - Step 2: Convert to fraction form
252,936.98/349,048.74 = 138,213.08/x - Step 3: Cross multiply
252,936.98x = 349,048.74 × 138,213.08 - Step 4: Simplify right side
252,936.98x = 48,243,101,425.52 - Step 5: Solve for x
x = 48,243,101,425.52/252,936.98 - Step 6: Final answer
x = 190,731.70
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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.