Finding the Fourth Proportional to 387,258.48, 534,322.44 and 226,021.68
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Solution
The fourth proportional to 387,258.48, 534,322.44 and 226,021.68 is: 311,854.90
Step by Step Solution
- Step 1: Write the proportion equation
387,258.48 : 534,322.44 = 226,021.68 : x - Step 2: Convert to fraction form
387,258.48/534,322.44 = 226,021.68/x - Step 3: Cross multiply
387,258.48x = 534,322.44 × 226,021.68 - Step 4: Simplify right side
387,258.48x = 120,768,455,550.50 - Step 5: Solve for x
x = 120,768,455,550.50/387,258.48 - Step 6: Final answer
x = 311,854.90
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.