Finding the Fourth Proportional to 457.23, 631.08 and 270.75
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Solution
The fourth proportional to 457.23, 631.08 and 270.75 is: 373.70
Step by Step Solution
- Step 1: Write the proportion equation
457.23 : 631.08 = 270.75 : x - Step 2: Convert to fraction form
457.23/631.08 = 270.75/x - Step 3: Cross multiply
457.23x = 631.08 × 270.75 - Step 4: Simplify right side
457.23x = 170,864.91 - Step 5: Solve for x
x = 170,864.91/457.23 - Step 6: Final answer
x = 373.70
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.