Finding the Fourth Proportional to 444.23, 612.99 and 257.73
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Solution
The fourth proportional to 444.23, 612.99 and 257.73 is: 355.64
Step by Step Solution
- Step 1: Write the proportion equation
444.23 : 612.99 = 257.73 : x - Step 2: Convert to fraction form
444.23/612.99 = 257.73/x - Step 3: Cross multiply
444.23x = 612.99 × 257.73 - Step 4: Simplify right side
444.23x = 157,985.91 - Step 5: Solve for x
x = 157,985.91/444.23 - Step 6: Final answer
x = 355.64
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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.