Finding the Fourth Proportional to 331,412.68, 457,203.99 and 223,943.50
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Solution
The fourth proportional to 331,412.68, 457,203.99 and 223,943.50 is: 308,943.71
Step by Step Solution
- Step 1: Write the proportion equation
331,412.68 : 457,203.99 = 223,943.50 : x - Step 2: Convert to fraction form
331,412.68/457,203.99 = 223,943.50/x - Step 3: Cross multiply
331,412.68x = 457,203.99 × 223,943.50 - Step 4: Simplify right side
331,412.68x = 102,387,861,734.57 - Step 5: Solve for x
x = 102,387,861,734.57/331,412.68 - Step 6: Final answer
x = 308,943.71
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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.