Finding the Fourth Proportional to 417,913.75, 576,720.98 and 239,065.75
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Solution
The fourth proportional to 417,913.75, 576,720.98 and 239,065.75 is: 329,910.74
Step by Step Solution
- Step 1: Write the proportion equation
417,913.75 : 576,720.98 = 239,065.75 : x - Step 2: Convert to fraction form
417,913.75/576,720.98 = 239,065.75/x - Step 3: Cross multiply
417,913.75x = 576,720.98 × 239,065.75 - Step 4: Simplify right side
417,913.75x = 137,874,233,624.44 - Step 5: Solve for x
x = 137,874,233,624.44/417,913.75 - Step 6: Final answer
x = 329,910.74
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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.