Finding the Fourth Proportional to 416.08, 623.68 and 155.91
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Solution
The fourth proportional to 416.08, 623.68 and 155.91 is: 233.70
Step by Step Solution
- Step 1: Write the proportion equation
416.08 : 623.68 = 155.91 : x - Step 2: Convert to fraction form
416.08/623.68 = 155.91/x - Step 3: Cross multiply
416.08x = 623.68 × 155.91 - Step 4: Simplify right side
416.08x = 97,237.75 - Step 5: Solve for x
x = 97,237.75/416.08 - Step 6: Final answer
x = 233.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.