Finding the Fourth Proportional to 340,737.80, 511,106.70 and 261,021.65
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Solution
The fourth proportional to 340,737.80, 511,106.70 and 261,021.65 is: 391,532.48
Step by Step Solution
- Step 1: Write the proportion equation
340,737.80 : 511,106.70 = 261,021.65 : x - Step 2: Convert to fraction form
340,737.80/511,106.70 = 261,021.65/x - Step 3: Cross multiply
340,737.80x = 511,106.70 × 261,021.65 - Step 4: Simplify right side
340,737.80x = 133,409,914,160.06 - Step 5: Solve for x
x = 133,409,914,160.06/340,737.80 - Step 6: Final answer
x = 391,532.48
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1.5x scale
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.