Finding the Fourth Proportional to 259,860.10, 389,790.12 and 97,784.62
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Solution
The fourth proportional to 259,860.10, 389,790.12 and 97,784.62 is: 146,676.92
Step by Step Solution
- Step 1: Write the proportion equation
259,860.10 : 389,790.12 = 97,784.62 : x - Step 2: Convert to fraction form
259,860.10/389,790.12 = 97,784.62/x - Step 3: Cross multiply
259,860.10x = 389,790.12 × 97,784.62 - Step 4: Simplify right side
259,860.10x = 38,115,478,763.95 - Step 5: Solve for x
x = 38,115,478,763.95/259,860.10 - Step 6: Final answer
x = 146,676.92
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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.