Finding the Fourth Proportional to 171,754.49, 257,409.99 and 76,915.23
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Solution
The fourth proportional to 171,754.49, 257,409.99 and 76,915.23 is: 115,273.55
Step by Step Solution
- Step 1: Write the proportion equation
171,754.49 : 257,409.99 = 76,915.23 : x - Step 2: Convert to fraction form
171,754.49/257,409.99 = 76,915.23/x - Step 3: Cross multiply
171,754.49x = 257,409.99 × 76,915.23 - Step 4: Simplify right side
171,754.49x = 19,798,748,585.15 - Step 5: Solve for x
x = 19,798,748,585.15/171,754.49 - Step 6: Final answer
x = 115,273.55
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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.