Finding the Fourth Proportional to 254,257.62, 381,448.08 and 76,754.02
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Solution
The fourth proportional to 254,257.62, 381,448.08 and 76,754.02 is: 115,149.64
Step by Step Solution
- Step 1: Write the proportion equation
254,257.62 : 381,448.08 = 76,754.02 : x - Step 2: Convert to fraction form
254,257.62/381,448.08 = 76,754.02/x - Step 3: Cross multiply
254,257.62x = 381,448.08 × 76,754.02 - Step 4: Simplify right side
254,257.62x = 29,277,673,561.28 - Step 5: Solve for x
x = 29,277,673,561.28/254,257.62 - Step 6: Final answer
x = 115,149.64
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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.