Finding the Fourth Proportional to 260,801.10, 391,201.65 and 201,679.20
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Solution
The fourth proportional to 260,801.10, 391,201.65 and 201,679.20 is: 302,518.80
Step by Step Solution
- Step 1: Write the proportion equation
260,801.10 : 391,201.65 = 201,679.20 : x - Step 2: Convert to fraction form
260,801.10/391,201.65 = 201,679.20/x - Step 3: Cross multiply
260,801.10x = 391,201.65 × 201,679.20 - Step 4: Simplify right side
260,801.10x = 78,897,235,810.68 - Step 5: Solve for x
x = 78,897,235,810.68/260,801.10 - Step 6: Final answer
x = 302,518.80
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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.