Finding the Fourth Proportional to 470.95, 649.19 and 371.18
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Solution
The fourth proportional to 470.95, 649.19 and 371.18 is: 511.65
Step by Step Solution
- Step 1: Write the proportion equation
470.95 : 649.19 = 371.18 : x - Step 2: Convert to fraction form
470.95/649.19 = 371.18/x - Step 3: Cross multiply
470.95x = 649.19 × 371.18 - Step 4: Simplify right side
470.95x = 240,961.24 - Step 5: Solve for x
x = 240,961.24/470.95 - Step 6: Final answer
x = 511.65
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.