Finding the Third Proportional to 418 and 528
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Solution
The third proportional to 418 and 528 is: 666.95
Step by Step Solution
- Step 1: Write the proportion equation
418 : 528 = 528 : x - Step 2: Convert to fraction form
418/528 = 528/x - Step 3: Cross multiply
418x = 528 × 528 - Step 4: Simplify right side
418x = 278,784 - Step 5: Solve for x
x = 278,784/418 - Step 6: Final answer
x = 666.95
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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.