Finding the Fourth Proportional to 358,442.13, 537,664.72 and 145,214.19
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Solution
The fourth proportional to 358,442.13, 537,664.72 and 145,214.19 is: 217,821.90
Step by Step Solution
- Step 1: Write the proportion equation
358,442.13 : 537,664.72 = 145,214.19 : x - Step 2: Convert to fraction form
358,442.13/537,664.72 = 145,214.19/x - Step 3: Cross multiply
358,442.13x = 537,664.72 × 145,214.19 - Step 4: Simplify right side
358,442.13x = 78,076,546,806.38 - Step 5: Solve for x
x = 78,076,546,806.38/358,442.13 - Step 6: Final answer
x = 217,821.90
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.