Finding the Fourth Proportional to 331,727.92, 497,784.60 and 139,588.26
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Solution
The fourth proportional to 331,727.92, 497,784.60 and 139,588.26 is: 209,463.48
Step by Step Solution
- Step 1: Write the proportion equation
331,727.92 : 497,784.60 = 139,588.26 : x - Step 2: Convert to fraction form
331,727.92/497,784.60 = 139,588.26/x - Step 3: Cross multiply
331,727.92x = 497,784.60 × 139,588.26 - Step 4: Simplify right side
331,727.92x = 69,484,886,168.80 - Step 5: Solve for x
x = 69,484,886,168.80/331,727.92 - Step 6: Final answer
x = 209,463.48
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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.