Finding the Fourth Proportional to 257,571.18, 386,352.64 and 70,582.68
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Solution
The fourth proportional to 257,571.18, 386,352.64 and 70,582.68 is: 105,872.89
Step by Step Solution
- Step 1: Write the proportion equation
257,571.18 : 386,352.64 = 70,582.68 : x - Step 2: Convert to fraction form
257,571.18/386,352.64 = 70,582.68/x - Step 3: Cross multiply
257,571.18x = 386,352.64 × 70,582.68 - Step 4: Simplify right side
257,571.18x = 27,269,804,756.28 - Step 5: Solve for x
x = 27,269,804,756.28/257,571.18 - Step 6: Final answer
x = 105,872.89
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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.