Finding the Fourth Proportional to 259,475.10, 389,212.65 and 141,377.10
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Solution
The fourth proportional to 259,475.10, 389,212.65 and 141,377.10 is: 212,065.65
Step by Step Solution
- Step 1: Write the proportion equation
259,475.10 : 389,212.65 = 141,377.10 : x - Step 2: Convert to fraction form
259,475.10/389,212.65 = 141,377.10/x - Step 3: Cross multiply
259,475.10x = 389,212.65 × 141,377.10 - Step 4: Simplify right side
259,475.10x = 55,025,755,740.32 - Step 5: Solve for x
x = 55,025,755,740.32/259,475.10 - Step 6: Final answer
x = 212,065.65
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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.