Finding the Fourth Proportional to 457.26, 630.93 and 260.74
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Solution
The fourth proportional to 457.26, 630.93 and 260.74 is: 359.77
Step by Step Solution
- Step 1: Write the proportion equation
457.26 : 630.93 = 260.74 : x - Step 2: Convert to fraction form
457.26/630.93 = 260.74/x - Step 3: Cross multiply
457.26x = 630.93 × 260.74 - Step 4: Simplify right side
457.26x = 164,508.69 - Step 5: Solve for x
x = 164,508.69/457.26 - Step 6: Final answer
x = 359.77
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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.