Finding the Fourth Proportional to 319,119.36, 440,382.40 and 175,885.44
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Solution
The fourth proportional to 319,119.36, 440,382.40 and 175,885.44 is: 242,720.63
Step by Step Solution
- Step 1: Write the proportion equation
319,119.36 : 440,382.40 = 175,885.44 : x - Step 2: Convert to fraction form
319,119.36/440,382.40 = 175,885.44/x - Step 3: Cross multiply
319,119.36x = 440,382.40 × 175,885.44 - Step 4: Simplify right side
319,119.36x = 77,456,852,192.26 - Step 5: Solve for x
x = 77,456,852,192.26/319,119.36 - Step 6: Final answer
x = 242,720.63
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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.