Finding the Fourth Proportional to 211,119.96, 316,709.10 and 70,918.68
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Solution
The fourth proportional to 211,119.96, 316,709.10 and 70,918.68 is: 106,387.82
Step by Step Solution
- Step 1: Write the proportion equation
211,119.96 : 316,709.10 = 70,918.68 : x - Step 2: Convert to fraction form
211,119.96/316,709.10 = 70,918.68/x - Step 3: Cross multiply
211,119.96x = 316,709.10 × 70,918.68 - Step 4: Simplify right side
211,119.96x = 22,460,591,315.99 - Step 5: Solve for x
x = 22,460,591,315.99/211,119.96 - Step 6: Final answer
x = 106,387.82
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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.