Finding the Fourth Proportional to 415.65, 572.99 and 290.92
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Solution
The fourth proportional to 415.65, 572.99 and 290.92 is: 401.04
Step by Step Solution
- Step 1: Write the proportion equation
415.65 : 572.99 = 290.92 : x - Step 2: Convert to fraction form
415.65/572.99 = 290.92/x - Step 3: Cross multiply
415.65x = 572.99 × 290.92 - Step 4: Simplify right side
415.65x = 166,694.25 - Step 5: Solve for x
x = 166,694.25/415.65 - Step 6: Final answer
x = 401.04
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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.