Finding the Fourth Proportional to 386,472.36, 533,331.36 and 214,416.38
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Solution
The fourth proportional to 386,472.36, 533,331.36 and 214,416.38 is: 295,894.33
Step by Step Solution
- Step 1: Write the proportion equation
386,472.36 : 533,331.36 = 214,416.38 : x - Step 2: Convert to fraction form
386,472.36/533,331.36 = 214,416.38/x - Step 3: Cross multiply
386,472.36x = 533,331.36 × 214,416.38 - Step 4: Simplify right side
386,472.36x = 114,354,979,551.68 - Step 5: Solve for x
x = 114,354,979,551.68/386,472.36 - Step 6: Final answer
x = 295,894.33
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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.