Finding the Fourth Proportional to 444.08, 612.77 and 286.74
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Solution
The fourth proportional to 444.08, 612.77 and 286.74 is: 395.66
Step by Step Solution
- Step 1: Write the proportion equation
444.08 : 612.77 = 286.74 : x - Step 2: Convert to fraction form
444.08/612.77 = 286.74/x - Step 3: Cross multiply
444.08x = 612.77 × 286.74 - Step 4: Simplify right side
444.08x = 175,704.24 - Step 5: Solve for x
x = 175,704.24/444.08 - Step 6: Final answer
x = 395.66
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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.