Finding the Fourth Proportional to 228,643.68, 314,832.96 and 202,778.40
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Solution
The fourth proportional to 228,643.68, 314,832.96 and 202,778.40 is: 279,217.53
Step by Step Solution
- Step 1: Write the proportion equation
228,643.68 : 314,832.96 = 202,778.40 : x - Step 2: Convert to fraction form
228,643.68/314,832.96 = 202,778.40/x - Step 3: Cross multiply
228,643.68x = 314,832.96 × 202,778.40 - Step 4: Simplify right side
228,643.68x = 63,841,323,896.06 - Step 5: Solve for x
x = 63,841,323,896.06/228,643.68 - Step 6: Final answer
x = 279,217.53
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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.