Finding the Fourth Proportional to 210,607.84, 290,638.16 and 115,114.48
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Solution
The fourth proportional to 210,607.84, 290,638.16 and 115,114.48 is: 158,857.62
Step by Step Solution
- Step 1: Write the proportion equation
210,607.84 : 290,638.16 = 115,114.48 : x - Step 2: Convert to fraction form
210,607.84/290,638.16 = 115,114.48/x - Step 3: Cross multiply
210,607.84x = 290,638.16 × 115,114.48 - Step 4: Simplify right side
210,607.84x = 33,456,660,656.56 - Step 5: Solve for x
x = 33,456,660,656.56/210,607.84 - Step 6: Final answer
x = 158,857.62
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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.