Finding the Fourth Proportional to 278,311.24, 414,119.21 and 277,378.12
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Solution
The fourth proportional to 278,311.24, 414,119.21 and 277,378.12 is: 412,730.75
Step by Step Solution
- Step 1: Write the proportion equation
278,311.24 : 414,119.21 = 277,378.12 : x - Step 2: Convert to fraction form
278,311.24/414,119.21 = 277,378.12/x - Step 3: Cross multiply
278,311.24x = 414,119.21 × 277,378.12 - Step 4: Simplify right side
278,311.24x = 114,867,607,925.69 - Step 5: Solve for x
x = 114,867,607,925.69/278,311.24 - Step 6: Final answer
x = 412,730.75
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.