Finding the Fourth Proportional to 202,796.32, 279,566.16 and 139,033.12
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Solution
The fourth proportional to 202,796.32, 279,566.16 and 139,033.12 is: 191,664.99
Step by Step Solution
- Step 1: Write the proportion equation
202,796.32 : 279,566.16 = 139,033.12 : x - Step 2: Convert to fraction form
202,796.32/279,566.16 = 139,033.12/x - Step 3: Cross multiply
202,796.32x = 279,566.16 × 139,033.12 - Step 4: Simplify right side
202,796.32x = 38,868,955,471.22 - Step 5: Solve for x
x = 38,868,955,471.22/202,796.32 - Step 6: Final answer
x = 191,664.99
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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.