Finding the Fourth Proportional to 457.99, 631.97 and 258.80
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Solution
The fourth proportional to 457.99, 631.97 and 258.80 is: 357.11
Step by Step Solution
- Step 1: Write the proportion equation
457.99 : 631.97 = 258.80 : x - Step 2: Convert to fraction form
457.99/631.97 = 258.80/x - Step 3: Cross multiply
457.99x = 631.97 × 258.80 - Step 4: Simplify right side
457.99x = 163,552.11 - Step 5: Solve for x
x = 163,552.11/457.99 - Step 6: Final answer
x = 357.11
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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.