Finding the Fourth Proportional to 209,909.70, 314,864.55 and 201,161.70
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Solution
The fourth proportional to 209,909.70, 314,864.55 and 201,161.70 is: 301,742.55
Step by Step Solution
- Step 1: Write the proportion equation
209,909.70 : 314,864.55 = 201,161.70 : x - Step 2: Convert to fraction form
209,909.70/314,864.55 = 201,161.70/x - Step 3: Cross multiply
209,909.70x = 314,864.55 × 201,161.70 - Step 4: Simplify right side
209,909.70x = 63,338,688,147.74 - Step 5: Solve for x
x = 63,338,688,147.74/209,909.70 - Step 6: Final answer
x = 301,742.55
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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.