Finding the Fourth Proportional to 256,023.21, 383,915.95 and 149,437.94
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Solution
The fourth proportional to 256,023.21, 383,915.95 and 149,437.94 is: 224,087.53
Step by Step Solution
- Step 1: Write the proportion equation
256,023.21 : 383,915.95 = 149,437.94 : x - Step 2: Convert to fraction form
256,023.21/383,915.95 = 149,437.94/x - Step 3: Cross multiply
256,023.21x = 383,915.95 × 149,437.94 - Step 4: Simplify right side
256,023.21x = 57,371,608,701.14 - Step 5: Solve for x
x = 57,371,608,701.14/256,023.21 - Step 6: Final answer
x = 224,087.53
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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.