Finding the Fourth Proportional to 202,197.36, 279,029.70 and 111,557.14
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Solution
The fourth proportional to 202,197.36, 279,029.70 and 111,557.14 is: 153,947.39
Step by Step Solution
- Step 1: Write the proportion equation
202,197.36 : 279,029.70 = 111,557.14 : x - Step 2: Convert to fraction form
202,197.36/279,029.70 = 111,557.14/x - Step 3: Cross multiply
202,197.36x = 279,029.70 × 111,557.14 - Step 4: Simplify right side
202,197.36x = 31,127,755,307.06 - Step 5: Solve for x
x = 31,127,755,307.06/202,197.36 - Step 6: Final answer
x = 153,947.39
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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.