Finding the Fourth Proportional to 207,787.70, 310,903.95 and 137,803.70
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Solution
The fourth proportional to 207,787.70, 310,903.95 and 137,803.70 is: 206,189.85
Step by Step Solution
- Step 1: Write the proportion equation
207,787.70 : 310,903.95 = 137,803.70 : x - Step 2: Convert to fraction form
207,787.70/310,903.95 = 137,803.70/x - Step 3: Cross multiply
207,787.70x = 310,903.95 × 137,803.70 - Step 4: Simplify right side
207,787.70x = 42,843,714,654.62 - Step 5: Solve for x
x = 42,843,714,654.62/207,787.70 - Step 6: Final answer
x = 206,189.85
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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.