Finding the Fourth Proportional to 318,561.84, 439,611.84 and 223,033.68
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Solution
The fourth proportional to 318,561.84, 439,611.84 and 223,033.68 is: 307,784.03
Step by Step Solution
- Step 1: Write the proportion equation
318,561.84 : 439,611.84 = 223,033.68 : x - Step 2: Convert to fraction form
318,561.84/439,611.84 = 223,033.68/x - Step 3: Cross multiply
318,561.84x = 439,611.84 × 223,033.68 - Step 4: Simplify right side
318,561.84x = 98,048,246,446.77 - Step 5: Solve for x
x = 98,048,246,446.77/318,561.84 - Step 6: Final answer
x = 307,784.03
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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.