Finding the Fourth Proportional to 260,711.40, 391,358.70 and 201,808.20
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Solution
The fourth proportional to 260,711.40, 391,358.70 and 201,808.20 is: 302,938.02
Step by Step Solution
- Step 1: Write the proportion equation
260,711.40 : 391,358.70 = 201,808.20 : x - Step 2: Convert to fraction form
260,711.40/391,358.70 = 201,808.20/x - Step 3: Cross multiply
260,711.40x = 391,358.70 × 201,808.20 - Step 4: Simplify right side
260,711.40x = 78,979,394,801.34 - Step 5: Solve for x
x = 78,979,394,801.34/260,711.40 - Step 6: Final answer
x = 302,938.02
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1.5x scale
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.