Finding the Fourth Proportional to 331,312.24, 497,026.80 and 121,243.60
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Solution
The fourth proportional to 331,312.24, 497,026.80 and 121,243.60 is: 181,886.79
Step by Step Solution
- Step 1: Write the proportion equation
331,312.24 : 497,026.80 = 121,243.60 : x - Step 2: Convert to fraction form
331,312.24/497,026.80 = 121,243.60/x - Step 3: Cross multiply
331,312.24x = 497,026.80 × 121,243.60 - Step 4: Simplify right side
331,312.24x = 60,261,318,528.48 - Step 5: Solve for x
x = 60,261,318,528.48/331,312.24 - Step 6: Final answer
x = 181,886.79
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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.