Finding the Fourth Proportional to 245,129.68, 338,226.48 and 143,108.92
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Solution
The fourth proportional to 245,129.68, 338,226.48 and 143,108.92 is: 197,459.67
Step by Step Solution
- Step 1: Write the proportion equation
245,129.68 : 338,226.48 = 143,108.92 : x - Step 2: Convert to fraction form
245,129.68/338,226.48 = 143,108.92/x - Step 3: Cross multiply
245,129.68x = 338,226.48 × 143,108.92 - Step 4: Simplify right side
245,129.68x = 48,403,226,268.20 - Step 5: Solve for x
x = 48,403,226,268.20/245,129.68 - Step 6: Final answer
x = 197,459.67
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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.