Finding the Fourth Proportional to 371,944.28, 513,283.44 and 202,178.40
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Solution
The fourth proportional to 371,944.28, 513,283.44 and 202,178.40 is: 279,006.38
Step by Step Solution
- Step 1: Write the proportion equation
371,944.28 : 513,283.44 = 202,178.40 : x - Step 2: Convert to fraction form
371,944.28/513,283.44 = 202,178.40/x - Step 3: Cross multiply
371,944.28x = 513,283.44 × 202,178.40 - Step 4: Simplify right side
371,944.28x = 103,774,824,645.70 - Step 5: Solve for x
x = 103,774,824,645.70/371,944.28 - Step 6: Final answer
x = 279,006.38
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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.