Finding the Fourth Proportional to 210,000.99, 314,902.97 and 76,788.09
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Solution
The fourth proportional to 210,000.99, 314,902.97 and 76,788.09 is: 115,146.11
Step by Step Solution
- Step 1: Write the proportion equation
210,000.99 : 314,902.97 = 76,788.09 : x - Step 2: Convert to fraction form
210,000.99/314,902.97 = 76,788.09/x - Step 3: Cross multiply
210,000.99x = 314,902.97 × 76,788.09 - Step 4: Simplify right side
210,000.99x = 24,180,797,601.63 - Step 5: Solve for x
x = 24,180,797,601.63/210,000.99 - Step 6: Final answer
x = 115,146.11
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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.