Finding the Fourth Proportional to 202,804.99, 279,859.86 and 112,155.66
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Solution
The fourth proportional to 202,804.99, 279,859.86 and 112,155.66 is: 154,768.71
Step by Step Solution
- Step 1: Write the proportion equation
202,804.99 : 279,859.86 = 112,155.66 : x - Step 2: Convert to fraction form
202,804.99/279,859.86 = 112,155.66/x - Step 3: Cross multiply
202,804.99x = 279,859.86 × 112,155.66 - Step 4: Simplify right side
202,804.99x = 31,387,867,305.81 - Step 5: Solve for x
x = 31,387,867,305.81/202,804.99 - Step 6: Final answer
x = 154,768.71
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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.