Finding the Fourth Proportional to 305,985.97, 458,650.81 and 147,997.09
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Solution
The fourth proportional to 305,985.97, 458,650.81 and 147,997.09 is: 221,836.92
Step by Step Solution
- Step 1: Write the proportion equation
305,985.97 : 458,650.81 = 147,997.09 : x - Step 2: Convert to fraction form
305,985.97/458,650.81 = 147,997.09/x - Step 3: Cross multiply
305,985.97x = 458,650.81 × 147,997.09 - Step 4: Simplify right side
305,985.97x = 67,878,985,206.14 - Step 5: Solve for x
x = 67,878,985,206.14/305,985.97 - Step 6: Final answer
x = 221,836.92
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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.