Finding the Fourth Proportional to 194,921.80, 292,382.70 and 141,777.70
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Solution
The fourth proportional to 194,921.80, 292,382.70 and 141,777.70 is: 212,666.55
Step by Step Solution
- Step 1: Write the proportion equation
194,921.80 : 292,382.70 = 141,777.70 : x - Step 2: Convert to fraction form
194,921.80/292,382.70 = 141,777.70/x - Step 3: Cross multiply
194,921.80x = 292,382.70 × 141,777.70 - Step 4: Simplify right side
194,921.80x = 41,453,346,725.79 - Step 5: Solve for x
x = 41,453,346,725.79/194,921.80 - Step 6: Final answer
x = 212,666.55
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1.5x scale
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.