Finding the Fourth Proportional to 383,888.99, 529,936.70 and 247,989.21
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Solution
The fourth proportional to 383,888.99, 529,936.70 and 247,989.21 is: 342,334.86
Step by Step Solution
- Step 1: Write the proportion equation
383,888.99 : 529,936.70 = 247,989.21 : x - Step 2: Convert to fraction form
383,888.99/529,936.70 = 247,989.21/x - Step 3: Cross multiply
383,888.99x = 529,936.70 × 247,989.21 - Step 4: Simplify right side
383,888.99x = 131,418,582,343.06 - Step 5: Solve for x
x = 131,418,582,343.06/383,888.99 - Step 6: Final answer
x = 342,334.86
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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.