Finding the Fourth Proportional to 383,503.41, 529,252.79 and 213,738.75
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Solution
The fourth proportional to 383,503.41, 529,252.79 and 213,738.75 is: 294,969.55
Step by Step Solution
- Step 1: Write the proportion equation
383,503.41 : 529,252.79 = 213,738.75 : x - Step 2: Convert to fraction form
383,503.41/529,252.79 = 213,738.75/x - Step 3: Cross multiply
383,503.41x = 529,252.79 × 213,738.75 - Step 4: Simplify right side
383,503.41x = 113,121,828,699.92 - Step 5: Solve for x
x = 113,121,828,699.92/383,503.41 - Step 6: Final answer
x = 294,969.55
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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.