Finding the Third Proportional to 423 and 531
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Solution
The third proportional to 423 and 531 is: 666.57
Step by Step Solution
- Step 1: Write the proportion equation
423 : 531 = 531 : x - Step 2: Convert to fraction form
423/531 = 531/x - Step 3: Cross multiply
423x = 531 × 531 - Step 4: Simplify right side
423x = 281,961 - Step 5: Solve for x
x = 281,961/423 - Step 6: Final answer
x = 666.57
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These problems maintain the same ratio (1.26) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.