Finding the Fourth Proportional to 427.50, 589.95 and 252.99
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Solution
The fourth proportional to 427.50, 589.95 and 252.99 is: 349.13
Step by Step Solution
- Step 1: Write the proportion equation
427.50 : 589.95 = 252.99 : x - Step 2: Convert to fraction form
427.50/589.95 = 252.99/x - Step 3: Cross multiply
427.50x = 589.95 × 252.99 - Step 4: Simplify right side
427.50x = 149,251.45 - Step 5: Solve for x
x = 149,251.45/427.50 - Step 6: Final answer
x = 349.13
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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.