Finding the Fourth Proportional to 415.98, 623.52 and 261.99
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Solution
The fourth proportional to 415.98, 623.52 and 261.99 is: 392.70
Step by Step Solution
- Step 1: Write the proportion equation
415.98 : 623.52 = 261.99 : x - Step 2: Convert to fraction form
415.98/623.52 = 261.99/x - Step 3: Cross multiply
415.98x = 623.52 × 261.99 - Step 4: Simplify right side
415.98x = 163,356.00 - Step 5: Solve for x
x = 163,356.00/415.98 - Step 6: Final answer
x = 392.70
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.