Finding the Fourth Proportional to 210,968.28, 291,078.65 and 120,291.17
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Solution
The fourth proportional to 210,968.28, 291,078.65 and 120,291.17 is: 165,968.99
Step by Step Solution
- Step 1: Write the proportion equation
210,968.28 : 291,078.65 = 120,291.17 : x - Step 2: Convert to fraction form
210,968.28/291,078.65 = 120,291.17/x - Step 3: Cross multiply
210,968.28x = 291,078.65 × 120,291.17 - Step 4: Simplify right side
210,968.28x = 35,014,190,769.06 - Step 5: Solve for x
x = 35,014,190,769.06/210,968.28 - Step 6: Final answer
x = 165,968.99
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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.