Finding the Fourth Proportional to 207,246.10, 310,869.16 and 74,130.70
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Solution
The fourth proportional to 207,246.10, 310,869.16 and 74,130.70 is: 111,196.05
Step by Step Solution
- Step 1: Write the proportion equation
207,246.10 : 310,869.16 = 74,130.70 : x - Step 2: Convert to fraction form
207,246.10/310,869.16 = 74,130.70/x - Step 3: Cross multiply
207,246.10x = 310,869.16 × 74,130.70 - Step 4: Simplify right side
207,246.10x = 23,044,948,439.21 - Step 5: Solve for x
x = 23,044,948,439.21/207,246.10 - Step 6: Final answer
x = 111,196.05
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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.