Finding the Fourth Proportional to 438,122.20, 657,183.30 and 248,509.30
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Solution
The fourth proportional to 438,122.20, 657,183.30 and 248,509.30 is: 372,763.95
Step by Step Solution
- Step 1: Write the proportion equation
438,122.20 : 657,183.30 = 248,509.30 : x - Step 2: Convert to fraction form
438,122.20/657,183.30 = 248,509.30/x - Step 3: Cross multiply
438,122.20x = 657,183.30 × 248,509.30 - Step 4: Simplify right side
438,122.20x = 163,316,161,854.69 - Step 5: Solve for x
x = 163,316,161,854.69/438,122.20 - Step 6: Final answer
x = 372,763.95
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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.