Finding the Third Proportional to 278,722.13 and 420,695.44
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Solution
The third proportional to 278,722.13 and 420,695.44 is: 634,986.01
Step by Step Solution
- Step 1: Write the proportion equation
278,722.13 : 420,695.44 = 420,695.44 : x - Step 2: Convert to fraction form
278,722.13/420,695.44 = 420,695.44/x - Step 3: Cross multiply
278,722.13x = 420,695.44 × 420,695.44 - Step 4: Simplify right side
278,722.13x = 176,984,651,133.32 - Step 5: Solve for x
x = 176,984,651,133.32/278,722.13 - Step 6: Final answer
x = 634,986.01
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These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.