Finding the Fourth Proportional to 383,115.36, 528,131.62 and 245,274.58
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Solution
The fourth proportional to 383,115.36, 528,131.62 and 245,274.58 is: 338,115.55
Step by Step Solution
- Step 1: Write the proportion equation
383,115.36 : 528,131.62 = 245,274.58 : x - Step 2: Convert to fraction form
383,115.36/528,131.62 = 245,274.58/x - Step 3: Cross multiply
383,115.36x = 528,131.62 × 245,274.58 - Step 4: Simplify right side
383,115.36x = 129,537,261,280.22 - Step 5: Solve for x
x = 129,537,261,280.22/383,115.36 - Step 6: Final answer
x = 338,115.55
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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.