Finding the Fourth Proportional to 541,343.36, 811,995.60 and 141,980.96
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Solution
The fourth proportional to 541,343.36, 811,995.60 and 141,980.96 is: 212,966.34
Step by Step Solution
- Step 1: Write the proportion equation
541,343.36 : 811,995.60 = 141,980.96 : x - Step 2: Convert to fraction form
541,343.36/811,995.60 = 141,980.96/x - Step 3: Cross multiply
541,343.36x = 811,995.60 × 141,980.96 - Step 4: Simplify right side
541,343.36x = 115,287,914,803.78 - Step 5: Solve for x
x = 115,287,914,803.78/541,343.36 - Step 6: Final answer
x = 212,966.34
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.