Finding the Fourth Proportional to 173,899.13, 239,980.79 and 98,447.63
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Solution
The fourth proportional to 173,899.13, 239,980.79 and 98,447.63 is: 135,857.72
Step by Step Solution
- Step 1: Write the proportion equation
173,899.13 : 239,980.79 = 98,447.63 : x - Step 2: Convert to fraction form
173,899.13/239,980.79 = 98,447.63/x - Step 3: Cross multiply
173,899.13x = 239,980.79 × 98,447.63 - Step 4: Simplify right side
173,899.13x = 23,625,539,067.24 - Step 5: Solve for x
x = 23,625,539,067.24/173,899.13 - Step 6: Final answer
x = 135,857.72
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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.