Finding the Fourth Proportional to 408,377.28, 612,557.28 and 218,902.08
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Solution
The fourth proportional to 408,377.28, 612,557.28 and 218,902.08 is: 328,348.49
Step by Step Solution
- Step 1: Write the proportion equation
408,377.28 : 612,557.28 = 218,902.08 : x - Step 2: Convert to fraction form
408,377.28/612,557.28 = 218,902.08/x - Step 3: Cross multiply
408,377.28x = 612,557.28 × 218,902.08 - Step 4: Simplify right side
408,377.28x = 134,090,062,711.14 - Step 5: Solve for x
x = 134,090,062,711.14/408,377.28 - Step 6: Final answer
x = 328,348.49
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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.