Finding the Fourth Proportional to 371,989.44, 513,349.06 and 202,227.20
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Solution
The fourth proportional to 371,989.44, 513,349.06 and 202,227.20 is: 279,075.51
Step by Step Solution
- Step 1: Write the proportion equation
371,989.44 : 513,349.06 = 202,227.20 : x - Step 2: Convert to fraction form
371,989.44/513,349.06 = 202,227.20/x - Step 3: Cross multiply
371,989.44x = 513,349.06 × 202,227.20 - Step 4: Simplify right side
371,989.44x = 103,813,143,026.43 - Step 5: Solve for x
x = 103,813,143,026.43/371,989.44 - Step 6: Final answer
x = 279,075.51
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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.