Finding the Fourth Proportional to 418,343.42, 577,318.37 and 227,356.80
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Solution
The fourth proportional to 418,343.42, 577,318.37 and 227,356.80 is: 313,754.80
Step by Step Solution
- Step 1: Write the proportion equation
418,343.42 : 577,318.37 = 227,356.80 : x - Step 2: Convert to fraction form
418,343.42/577,318.37 = 227,356.80/x - Step 3: Cross multiply
418,343.42x = 577,318.37 × 227,356.80 - Step 4: Simplify right side
418,343.42x = 131,257,257,184.42 - Step 5: Solve for x
x = 131,257,257,184.42/418,343.42 - Step 6: Final answer
x = 313,754.80
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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.