Finding the Fourth Proportional to 342,317.19, 472,361.38 and 189,331.08
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Solution
The fourth proportional to 342,317.19, 472,361.38 and 189,331.08 is: 261,256.79
Step by Step Solution
- Step 1: Write the proportion equation
342,317.19 : 472,361.38 = 189,331.08 : x - Step 2: Convert to fraction form
342,317.19/472,361.38 = 189,331.08/x - Step 3: Cross multiply
342,317.19x = 472,361.38 × 189,331.08 - Step 4: Simplify right side
342,317.19x = 89,432,690,225.69 - Step 5: Solve for x
x = 89,432,690,225.69/342,317.19 - Step 6: Final answer
x = 261,256.79
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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.