Finding the Fourth Proportional to 272,444.44, 408,919.74 and 139,420.12
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Solution
The fourth proportional to 272,444.44, 408,919.74 and 139,420.12 is: 209,259.69
Step by Step Solution
- Step 1: Write the proportion equation
272,444.44 : 408,919.74 = 139,420.12 : x - Step 2: Convert to fraction form
272,444.44/408,919.74 = 139,420.12/x - Step 3: Cross multiply
272,444.44x = 408,919.74 × 139,420.12 - Step 4: Simplify right side
272,444.44x = 57,011,639,221.17 - Step 5: Solve for x
x = 57,011,639,221.17/272,444.44 - Step 6: Final answer
x = 209,259.69
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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.