Finding the Fourth Proportional to 238,402.64, 328,915.42 and 135,022.75
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Solution
The fourth proportional to 238,402.64, 328,915.42 and 135,022.75 is: 186,285.95
Step by Step Solution
- Step 1: Write the proportion equation
238,402.64 : 328,915.42 = 135,022.75 : x - Step 2: Convert to fraction form
238,402.64/328,915.42 = 135,022.75/x - Step 3: Cross multiply
238,402.64x = 328,915.42 × 135,022.75 - Step 4: Simplify right side
238,402.64x = 44,411,063,365.96 - Step 5: Solve for x
x = 44,411,063,365.96/238,402.64 - Step 6: Final answer
x = 186,285.95
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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.