Finding the Fourth Proportional to 278,896.04, 384,745.07 and 202,246.98
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Solution
The fourth proportional to 278,896.04, 384,745.07 and 202,246.98 is: 279,005.51
Step by Step Solution
- Step 1: Write the proportion equation
278,896.04 : 384,745.07 = 202,246.98 : x - Step 2: Convert to fraction form
278,896.04/384,745.07 = 202,246.98/x - Step 3: Cross multiply
278,896.04x = 384,745.07 × 202,246.98 - Step 4: Simplify right side
278,896.04x = 77,813,529,548.31 - Step 5: Solve for x
x = 77,813,529,548.31/278,896.04 - Step 6: Final answer
x = 279,005.51
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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.