Finding the Fourth Proportional to 515.16, 710.64 and 442.44
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Solution
The fourth proportional to 515.16, 710.64 and 442.44 is: 610.33
Step by Step Solution
- Step 1: Write the proportion equation
515.16 : 710.64 = 442.44 : x - Step 2: Convert to fraction form
515.16/710.64 = 442.44/x - Step 3: Cross multiply
515.16x = 710.64 × 442.44 - Step 4: Simplify right side
515.16x = 314,415.56 - Step 5: Solve for x
x = 314,415.56/515.16 - Step 6: Final answer
x = 610.33
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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.