Finding the Fourth Proportional to 210,276.29, 290,285.37 and 129,748.19
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Solution
The fourth proportional to 210,276.29, 290,285.37 and 129,748.19 is: 179,116.72
Step by Step Solution
- Step 1: Write the proportion equation
210,276.29 : 290,285.37 = 129,748.19 : x - Step 2: Convert to fraction form
210,276.29/290,285.37 = 129,748.19/x - Step 3: Cross multiply
210,276.29x = 290,285.37 × 129,748.19 - Step 4: Simplify right side
210,276.29x = 37,663,999,889.55 - Step 5: Solve for x
x = 37,663,999,889.55/210,276.29 - Step 6: Final answer
x = 179,116.72
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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.