Finding the Fourth Proportional to 239,947.68, 360,142.92 and 121,702.05
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Solution
The fourth proportional to 239,947.68, 360,142.92 and 121,702.05 is: 182,665.37
Step by Step Solution
- Step 1: Write the proportion equation
239,947.68 : 360,142.92 = 121,702.05 : x - Step 2: Convert to fraction form
239,947.68/360,142.92 = 121,702.05/x - Step 3: Cross multiply
239,947.68x = 360,142.92 × 121,702.05 - Step 4: Simplify right side
239,947.68x = 43,830,131,656.99 - Step 5: Solve for x
x = 43,830,131,656.99/239,947.68 - Step 6: Final answer
x = 182,665.37
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.