Finding the Fourth Proportional to 210,862.36, 290,996.98 and 115,366.88
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Solution
The fourth proportional to 210,862.36, 290,996.98 and 115,366.88 is: 159,210.08
Step by Step Solution
- Step 1: Write the proportion equation
210,862.36 : 290,996.98 = 115,366.88 : x - Step 2: Convert to fraction form
210,862.36/290,996.98 = 115,366.88/x - Step 3: Cross multiply
210,862.36x = 290,996.98 × 115,366.88 - Step 4: Simplify right side
210,862.36x = 33,571,413,672.02 - Step 5: Solve for x
x = 33,571,413,672.02/210,862.36 - Step 6: Final answer
x = 159,210.08
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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.