Finding the Fourth Proportional to 318,818.25, 439,969.19 and 175,577.99
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Solution
The fourth proportional to 318,818.25, 439,969.19 and 175,577.99 is: 242,297.62
Step by Step Solution
- Step 1: Write the proportion equation
318,818.25 : 439,969.19 = 175,577.99 : x - Step 2: Convert to fraction form
318,818.25/439,969.19 = 175,577.99/x - Step 3: Cross multiply
318,818.25x = 439,969.19 × 175,577.99 - Step 4: Simplify right side
318,818.25x = 77,248,902,964.39 - Step 5: Solve for x
x = 77,248,902,964.39/318,818.25 - Step 6: Final answer
x = 242,297.62
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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.