Finding the Fourth Proportional to 453.79, 625.99 and 306.17
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Solution
The fourth proportional to 453.79, 625.99 and 306.17 is: 422.35
Step by Step Solution
- Step 1: Write the proportion equation
453.79 : 625.99 = 306.17 : x - Step 2: Convert to fraction form
453.79/625.99 = 306.17/x - Step 3: Cross multiply
453.79x = 625.99 × 306.17 - Step 4: Simplify right side
453.79x = 191,659.36 - Step 5: Solve for x
x = 191,659.36/453.79 - Step 6: Final answer
x = 422.35
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.