Finding the Fourth Proportional to 310,064.28, 427,824.36 and 202,791.96
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Solution
The fourth proportional to 310,064.28, 427,824.36 and 202,791.96 is: 279,810.82
Step by Step Solution
- Step 1: Write the proportion equation
310,064.28 : 427,824.36 = 202,791.96 : x - Step 2: Convert to fraction form
310,064.28/427,824.36 = 202,791.96/x - Step 3: Cross multiply
310,064.28x = 427,824.36 × 202,791.96 - Step 4: Simplify right side
310,064.28x = 86,759,340,500.15 - Step 5: Solve for x
x = 86,759,340,500.15/310,064.28 - Step 6: Final answer
x = 279,810.82
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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.