Finding the Fourth Proportional to 847.17, 1,270.71 and 270
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Solution
The fourth proportional to 847.17, 1,270.71 and 270 is: 404.99
Step by Step Solution
- Step 1: Write the proportion equation
847.17 : 1,270.71 = 270 : x - Step 2: Convert to fraction form
847.17/1,270.71 = 270/x - Step 3: Cross multiply
847.17x = 1,270.71 × 270 - Step 4: Simplify right side
847.17x = 343,091.70 - Step 5: Solve for x
x = 343,091.70/847.17 - Step 6: Final answer
x = 404.99
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.