Finding the Fourth Proportional to 438,135.20, 657,202.80 and 248,522.30
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Solution
The fourth proportional to 438,135.20, 657,202.80 and 248,522.30 is: 372,783.45
Step by Step Solution
- Step 1: Write the proportion equation
438,135.20 : 657,202.80 = 248,522.30 : x - Step 2: Convert to fraction form
438,135.20/657,202.80 = 248,522.30/x - Step 3: Cross multiply
438,135.20x = 657,202.80 × 248,522.30 - Step 4: Simplify right side
438,135.20x = 163,329,551,422.44 - Step 5: Solve for x
x = 163,329,551,422.44/438,135.20 - Step 6: Final answer
x = 372,783.45
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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.