Finding the Fourth Proportional to 251,951.40, 377,489.70 and 163,159.20
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Solution
The fourth proportional to 251,951.40, 377,489.70 and 163,159.20 is: 244,455.55
Step by Step Solution
- Step 1: Write the proportion equation
251,951.40 : 377,489.70 = 163,159.20 : x - Step 2: Convert to fraction form
251,951.40/377,489.70 = 163,159.20/x - Step 3: Cross multiply
251,951.40x = 377,489.70 × 163,159.20 - Step 4: Simplify right side
251,951.40x = 61,590,917,460.24 - Step 5: Solve for x
x = 61,590,917,460.24/251,951.40 - Step 6: Final answer
x = 244,455.55
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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.