Finding the Fourth Proportional to 425.10, 637.62 and 116.99
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Solution
The fourth proportional to 425.10, 637.62 and 116.99 is: 175.48
Step by Step Solution
- Step 1: Write the proportion equation
425.10 : 637.62 = 116.99 : x - Step 2: Convert to fraction form
425.10/637.62 = 116.99/x - Step 3: Cross multiply
425.10x = 637.62 × 116.99 - Step 4: Simplify right side
425.10x = 74,595.16 - Step 5: Solve for x
x = 74,595.16/425.10 - Step 6: Final answer
x = 175.48
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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.