Finding the Fourth Proportional to 331,952.20, 498,122.70 and 121,611.40
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Solution
The fourth proportional to 331,952.20, 498,122.70 and 121,611.40 is: 182,488.32
Step by Step Solution
- Step 1: Write the proportion equation
331,952.20 : 498,122.70 = 121,611.40 : x - Step 2: Convert to fraction form
331,952.20/498,122.70 = 121,611.40/x - Step 3: Cross multiply
331,952.20x = 498,122.70 × 121,611.40 - Step 4: Simplify right side
331,952.20x = 60,577,398,918.78 - Step 5: Solve for x
x = 60,577,398,918.78/331,952.20 - Step 6: Final answer
x = 182,488.32
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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.