Finding the Fourth Proportional to 201,461.10, 302,191.65 and 121,281.90
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Solution
The fourth proportional to 201,461.10, 302,191.65 and 121,281.90 is: 181,922.85
Step by Step Solution
- Step 1: Write the proportion equation
201,461.10 : 302,191.65 = 121,281.90 : x - Step 2: Convert to fraction form
201,461.10/302,191.65 = 121,281.90/x - Step 3: Cross multiply
201,461.10x = 302,191.65 × 121,281.90 - Step 4: Simplify right side
201,461.10x = 36,650,377,476.14 - Step 5: Solve for x
x = 36,650,377,476.14/201,461.10 - Step 6: Final answer
x = 181,922.85
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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.