Finding the Fourth Proportional to 194,718.80, 292,029.60 and 74,749.70
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Solution
The fourth proportional to 194,718.80, 292,029.60 and 74,749.70 is: 112,105.89
Step by Step Solution
- Step 1: Write the proportion equation
194,718.80 : 292,029.60 = 74,749.70 : x - Step 2: Convert to fraction form
194,718.80/292,029.60 = 74,749.70/x - Step 3: Cross multiply
194,718.80x = 292,029.60 × 74,749.70 - Step 4: Simplify right side
194,718.80x = 21,829,124,991.12 - Step 5: Solve for x
x = 21,829,124,991.12/194,718.80 - Step 6: Final answer
x = 112,105.89
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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.