Finding the Fourth Proportional to 331,502.64, 497,328.24 and 121,135.20
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Solution
The fourth proportional to 331,502.64, 497,328.24 and 121,135.20 is: 181,729.94
Step by Step Solution
- Step 1: Write the proportion equation
331,502.64 : 497,328.24 = 121,135.20 : x - Step 2: Convert to fraction form
331,502.64/497,328.24 = 121,135.20/x - Step 3: Cross multiply
331,502.64x = 497,328.24 × 121,135.20 - Step 4: Simplify right side
331,502.64x = 60,243,955,818.05 - Step 5: Solve for x
x = 60,243,955,818.05/331,502.64 - Step 6: Final answer
x = 181,729.94
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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.