Finding the Fourth Proportional to 370,761.79, 511,631.58 and 209,607.23
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Solution
The fourth proportional to 370,761.79, 511,631.58 and 209,607.23 is: 289,246.84
Step by Step Solution
- Step 1: Write the proportion equation
370,761.79 : 511,631.58 = 209,607.23 : x - Step 2: Convert to fraction form
370,761.79/511,631.58 = 209,607.23/x - Step 3: Cross multiply
370,761.79x = 511,631.58 × 209,607.23 - Step 4: Simplify right side
370,761.79x = 107,241,675,706.17 - Step 5: Solve for x
x = 107,241,675,706.17/370,761.79 - Step 6: Final answer
x = 289,246.84
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1.5x scale
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.