Finding the Fourth Proportional to 266,394.60, 398,935.80 and 125,989.20
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Solution
The fourth proportional to 266,394.60, 398,935.80 and 125,989.20 is: 188,673.50
Step by Step Solution
- Step 1: Write the proportion equation
266,394.60 : 398,935.80 = 125,989.20 : x - Step 2: Convert to fraction form
266,394.60/398,935.80 = 125,989.20/x - Step 3: Cross multiply
266,394.60x = 398,935.80 × 125,989.20 - Step 4: Simplify right side
266,394.60x = 50,261,602,293.36 - Step 5: Solve for x
x = 50,261,602,293.36/266,394.60 - Step 6: Final answer
x = 188,673.50
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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.