Finding the Fourth Proportional to 245,777.11, 339,178.75 and 138,350.99
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Solution
The fourth proportional to 245,777.11, 339,178.75 and 138,350.99 is: 190,927.93
Step by Step Solution
- Step 1: Write the proportion equation
245,777.11 : 339,178.75 = 138,350.99 : x - Step 2: Convert to fraction form
245,777.11/339,178.75 = 138,350.99/x - Step 3: Cross multiply
245,777.11x = 339,178.75 × 138,350.99 - Step 4: Simplify right side
245,777.11x = 46,925,715,416.43 - Step 5: Solve for x
x = 46,925,715,416.43/245,777.11 - Step 6: Final answer
x = 190,927.93
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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.