Finding the Fourth Proportional to 207,248.10, 310,872.15 and 74,132.70
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Solution
The fourth proportional to 207,248.10, 310,872.15 and 74,132.70 is: 111,199.05
Step by Step Solution
- Step 1: Write the proportion equation
207,248.10 : 310,872.15 = 74,132.70 : x - Step 2: Convert to fraction form
207,248.10/310,872.15 = 74,132.70/x - Step 3: Cross multiply
207,248.10x = 310,872.15 × 74,132.70 - Step 4: Simplify right side
207,248.10x = 23,045,791,834.31 - Step 5: Solve for x
x = 23,045,791,834.31/207,248.10 - Step 6: Final answer
x = 111,199.05
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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.