Finding the Fourth Proportional to 278,979.24, 418,311.26 and 255,175.10
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Solution
The fourth proportional to 278,979.24, 418,311.26 and 255,175.10 is: 382,618.49
Step by Step Solution
- Step 1: Write the proportion equation
278,979.24 : 418,311.26 = 255,175.10 : x - Step 2: Convert to fraction form
278,979.24/418,311.26 = 255,175.10/x - Step 3: Cross multiply
278,979.24x = 418,311.26 × 255,175.10 - Step 4: Simplify right side
278,979.24x = 106,742,616,626.46 - Step 5: Solve for x
x = 106,742,616,626.46/278,979.24 - Step 6: Final answer
x = 382,618.49
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.