Finding the Fourth Proportional to 457.43, 631.28 and 260.99
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Solution
The fourth proportional to 457.43, 631.28 and 260.99 is: 360.17
Step by Step Solution
- Step 1: Write the proportion equation
457.43 : 631.28 = 260.99 : x - Step 2: Convert to fraction form
457.43/631.28 = 260.99/x - Step 3: Cross multiply
457.43x = 631.28 × 260.99 - Step 4: Simplify right side
457.43x = 164,755.26 - Step 5: Solve for x
x = 164,755.26/457.43 - Step 6: Final answer
x = 360.17
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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.