Finding the Fourth Proportional to 210,458.40, 290,438.84 and 114,966.68
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Solution
The fourth proportional to 210,458.40, 290,438.84 and 114,966.68 is: 158,657.43
Step by Step Solution
- Step 1: Write the proportion equation
210,458.40 : 290,438.84 = 114,966.68 : x - Step 2: Convert to fraction form
210,458.40/290,438.84 = 114,966.68/x - Step 3: Cross multiply
210,458.40x = 290,438.84 × 114,966.68 - Step 4: Simplify right side
210,458.40x = 33,390,789,177.85 - Step 5: Solve for x
x = 33,390,789,177.85/210,458.40 - Step 6: Final answer
x = 158,657.43
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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.