Finding the Fourth Proportional to 423.74, 635.80 and 207.26
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Solution
The fourth proportional to 423.74, 635.80 and 207.26 is: 310.98
Step by Step Solution
- Step 1: Write the proportion equation
423.74 : 635.80 = 207.26 : x - Step 2: Convert to fraction form
423.74/635.80 = 207.26/x - Step 3: Cross multiply
423.74x = 635.80 × 207.26 - Step 4: Simplify right side
423.74x = 131,775.91 - Step 5: Solve for x
x = 131,775.91/423.74 - Step 6: Final answer
x = 310.98
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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.