Finding the Fourth Proportional to 371,928.40, 513,264.84 and 202,162.42
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Solution
The fourth proportional to 371,928.40, 513,264.84 and 202,162.42 is: 278,986.12
Step by Step Solution
- Step 1: Write the proportion equation
371,928.40 : 513,264.84 = 202,162.42 : x - Step 2: Convert to fraction form
371,928.40/513,264.84 = 202,162.42/x - Step 3: Cross multiply
371,928.40x = 513,264.84 × 202,162.42 - Step 4: Simplify right side
371,928.40x = 103,762,862,155.31 - Step 5: Solve for x
x = 103,762,862,155.31/371,928.40 - Step 6: Final answer
x = 278,986.12
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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.