Finding the Fourth Proportional to 342,135.87, 472,139.13 and 189,170.03
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Solution
The fourth proportional to 342,135.87, 472,139.13 and 189,170.03 is: 261,050.01
Step by Step Solution
- Step 1: Write the proportion equation
342,135.87 : 472,139.13 = 189,170.03 : x - Step 2: Convert to fraction form
342,135.87/472,139.13 = 189,170.03/x - Step 3: Cross multiply
342,135.87x = 472,139.13 × 189,170.03 - Step 4: Simplify right side
342,135.87x = 89,314,574,211.93 - Step 5: Solve for x
x = 89,314,574,211.93/342,135.87 - Step 6: Final answer
x = 261,050.01
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.