Finding the Fourth Proportional to 207,281.70, 310,922.55 and 74,225.70
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Solution
The fourth proportional to 207,281.70, 310,922.55 and 74,225.70 is: 111,338.55
Step by Step Solution
- Step 1: Write the proportion equation
207,281.70 : 310,922.55 = 74,225.70 : x - Step 2: Convert to fraction form
207,281.70/310,922.55 = 74,225.70/x - Step 3: Cross multiply
207,281.70x = 310,922.55 × 74,225.70 - Step 4: Simplify right side
207,281.70x = 23,078,443,919.54 - Step 5: Solve for x
x = 23,078,443,919.54/207,281.70 - Step 6: Final answer
x = 111,338.55
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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.