Finding the Fourth Proportional to 278,963.24, 384,940.50 and 165,764.12
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Solution
The fourth proportional to 278,963.24, 384,940.50 and 165,764.12 is: 228,737.39
Step by Step Solution
- Step 1: Write the proportion equation
278,963.24 : 384,940.50 = 165,764.12 : x - Step 2: Convert to fraction form
278,963.24/384,940.50 = 165,764.12/x - Step 3: Cross multiply
278,963.24x = 384,940.50 × 165,764.12 - Step 4: Simplify right side
278,963.24x = 63,809,323,234.86 - Step 5: Solve for x
x = 63,809,323,234.86/278,963.24 - Step 6: Final answer
x = 228,737.39
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1.5x scale
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.