Finding the Fourth Proportional to 298,064.98, 411,121.47 and 202,405.60
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Solution
The fourth proportional to 298,064.98, 411,121.47 and 202,405.60 is: 279,178.34
Step by Step Solution
- Step 1: Write the proportion equation
298,064.98 : 411,121.47 = 202,405.60 : x - Step 2: Convert to fraction form
298,064.98/411,121.47 = 202,405.60/x - Step 3: Cross multiply
298,064.98x = 411,121.47 × 202,405.60 - Step 4: Simplify right side
298,064.98x = 83,213,287,808.23 - Step 5: Solve for x
x = 83,213,287,808.23/298,064.98 - Step 6: Final answer
x = 279,178.34
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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.