Finding the Fourth Proportional to 383,315.68, 528,929.76 and 219,963.79
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Solution
The fourth proportional to 383,315.68, 528,929.76 and 219,963.79 is: 303,523.70
Step by Step Solution
- Step 1: Write the proportion equation
383,315.68 : 528,929.76 = 219,963.79 : x - Step 2: Convert to fraction form
383,315.68/528,929.76 = 219,963.79/x - Step 3: Cross multiply
383,315.68x = 528,929.76 × 219,963.79 - Step 4: Simplify right side
383,315.68x = 116,345,394,653.39 - Step 5: Solve for x
x = 116,345,394,653.39/383,315.68 - Step 6: Final answer
x = 303,523.70
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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.