Finding the Fourth Proportional to 651.84, 977.76 and 218.99
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Solution
The fourth proportional to 651.84, 977.76 and 218.99 is: 328.49
Step by Step Solution
- Step 1: Write the proportion equation
651.84 : 977.76 = 218.99 : x - Step 2: Convert to fraction form
651.84/977.76 = 218.99/x - Step 3: Cross multiply
651.84x = 977.76 × 218.99 - Step 4: Simplify right side
651.84x = 214,122.11 - Step 5: Solve for x
x = 214,122.11/651.84 - Step 6: Final answer
x = 328.49
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Similar ratio
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.