Finding the Fourth Proportional to 318,626.87, 439,704.65 and 175,396.08
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Solution
The fourth proportional to 318,626.87, 439,704.65 and 175,396.08 is: 242,046.36
Step by Step Solution
- Step 1: Write the proportion equation
318,626.87 : 439,704.65 = 175,396.08 : x - Step 2: Convert to fraction form
318,626.87/439,704.65 = 175,396.08/x - Step 3: Cross multiply
318,626.87x = 439,704.65 × 175,396.08 - Step 4: Simplify right side
318,626.87x = 77,122,474,055.15 - Step 5: Solve for x
x = 77,122,474,055.15/318,626.87 - Step 6: Final answer
x = 242,046.36
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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.