Finding the Fourth Proportional to 210,759.68, 290,848.56 and 115,266.08
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Solution
The fourth proportional to 210,759.68, 290,848.56 and 115,266.08 is: 159,067.30
Step by Step Solution
- Step 1: Write the proportion equation
210,759.68 : 290,848.56 = 115,266.08 : x - Step 2: Convert to fraction form
210,759.68/290,848.56 = 115,266.08/x - Step 3: Cross multiply
210,759.68x = 290,848.56 × 115,266.08 - Step 4: Simplify right side
210,759.68x = 33,524,973,384.84 - Step 5: Solve for x
x = 33,524,973,384.84/210,759.68 - Step 6: Final answer
x = 159,067.30
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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.