Finding the Fourth Proportional to 210,884.13, 291,024.81 and 115,390.80
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Solution
The fourth proportional to 210,884.13, 291,024.81 and 115,390.80 is: 159,241.88
Step by Step Solution
- Step 1: Write the proportion equation
210,884.13 : 291,024.81 = 115,390.80 : x - Step 2: Convert to fraction form
210,884.13/291,024.81 = 115,390.80/x - Step 3: Cross multiply
210,884.13x = 291,024.81 × 115,390.80 - Step 4: Simplify right side
210,884.13x = 33,581,585,645.75 - Step 5: Solve for x
x = 33,581,585,645.75/210,884.13 - Step 6: Final answer
x = 159,241.88
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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.