Finding the Fourth Proportional to 386,351.55, 533,178.99 and 225,180.63
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Solution
The fourth proportional to 386,351.55, 533,178.99 and 225,180.63 is: 310,757.34
Step by Step Solution
- Step 1: Write the proportion equation
386,351.55 : 533,178.99 = 225,180.63 : x - Step 2: Convert to fraction form
386,351.55/533,178.99 = 225,180.63/x - Step 3: Cross multiply
386,351.55x = 533,178.99 × 225,180.63 - Step 4: Simplify right side
386,351.55x = 120,061,580,870.96 - Step 5: Solve for x
x = 120,061,580,870.96/386,351.55 - Step 6: Final answer
x = 310,757.34
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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.