Finding the Fourth Proportional to 282,909.26, 390,406.99 and 155,584.85
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Solution
The fourth proportional to 282,909.26, 390,406.99 and 155,584.85 is: 214,702.81
Step by Step Solution
- Step 1: Write the proportion equation
282,909.26 : 390,406.99 = 155,584.85 : x - Step 2: Convert to fraction form
282,909.26/390,406.99 = 155,584.85/x - Step 3: Cross multiply
282,909.26x = 390,406.99 × 155,584.85 - Step 4: Simplify right side
282,909.26x = 60,741,413,124.87 - Step 5: Solve for x
x = 60,741,413,124.87/282,909.26 - Step 6: Final answer
x = 214,702.81
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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.