Finding the Fourth Proportional to 396,800.16, 547,588.17 and 215,515.62
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Solution
The fourth proportional to 396,800.16, 547,588.17 and 215,515.62 is: 297,413.70
Step by Step Solution
- Step 1: Write the proportion equation
396,800.16 : 547,588.17 = 215,515.62 : x - Step 2: Convert to fraction form
396,800.16/547,588.17 = 215,515.62/x - Step 3: Cross multiply
396,800.16x = 547,588.17 × 215,515.62 - Step 4: Simplify right side
396,800.16x = 118,013,803,962.22 - Step 5: Solve for x
x = 118,013,803,962.22/396,800.16 - Step 6: Final answer
x = 297,413.70
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1.5x scale
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.