Finding the Fourth Proportional to 457.60, 631.36 and 302.08
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Solution
The fourth proportional to 457.60, 631.36 and 302.08 is: 416.79
Step by Step Solution
- Step 1: Write the proportion equation
457.60 : 631.36 = 302.08 : x - Step 2: Convert to fraction form
457.60/631.36 = 302.08/x - Step 3: Cross multiply
457.60x = 631.36 × 302.08 - Step 4: Simplify right side
457.60x = 190,721.23 - Step 5: Solve for x
x = 190,721.23/457.60 - Step 6: Final answer
x = 416.79
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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.