Finding the Fourth Proportional to 171,384.16, 257,128.74 and 76,694.02
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Solution
The fourth proportional to 171,384.16, 257,128.74 and 76,694.02 is: 115,064.52
Step by Step Solution
- Step 1: Write the proportion equation
171,384.16 : 257,128.74 = 76,694.02 : x - Step 2: Convert to fraction form
171,384.16/257,128.74 = 76,694.02/x - Step 3: Cross multiply
171,384.16x = 257,128.74 × 76,694.02 - Step 4: Simplify right side
171,384.16x = 19,720,236,728.13 - Step 5: Solve for x
x = 19,720,236,728.13/171,384.16 - Step 6: Final answer
x = 115,064.52
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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.