Finding the Fourth Proportional to 482.76, 666.36 and 308.07
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Solution
The fourth proportional to 482.76, 666.36 and 308.07 is: 425.23
Step by Step Solution
- Step 1: Write the proportion equation
482.76 : 666.36 = 308.07 : x - Step 2: Convert to fraction form
482.76/666.36 = 308.07/x - Step 3: Cross multiply
482.76x = 666.36 × 308.07 - Step 4: Simplify right side
482.76x = 205,285.53 - Step 5: Solve for x
x = 205,285.53/482.76 - Step 6: Final answer
x = 425.23
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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.