Finding the Fourth Proportional to 519,671.75, 717,149.18 and 281,207.75
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Solution
The fourth proportional to 519,671.75, 717,149.18 and 281,207.75 is: 388,067.86
Step by Step Solution
- Step 1: Write the proportion equation
519,671.75 : 717,149.18 = 281,207.75 : x - Step 2: Convert to fraction form
519,671.75/717,149.18 = 281,207.75/x - Step 3: Cross multiply
519,671.75x = 717,149.18 × 281,207.75 - Step 4: Simplify right side
519,671.75x = 201,667,905,916.11 - Step 5: Solve for x
x = 201,667,905,916.11/519,671.75 - Step 6: Final answer
x = 388,067.86
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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.