Finding the Fourth Proportional to 409,213.21, 564,742.62 and 248,075.05
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Solution
The fourth proportional to 409,213.21, 564,742.62 and 248,075.05 is: 342,360.78
Step by Step Solution
- Step 1: Write the proportion equation
409,213.21 : 564,742.62 = 248,075.05 : x - Step 2: Convert to fraction form
409,213.21/564,742.62 = 248,075.05/x - Step 3: Cross multiply
409,213.21x = 564,742.62 × 248,075.05 - Step 4: Simplify right side
409,213.21x = 140,098,553,693.63 - Step 5: Solve for x
x = 140,098,553,693.63/409,213.21 - Step 6: Final answer
x = 342,360.78
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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.