Finding the Fourth Proportional to 313,343.80, 470,015.70 and 91,727.80
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Solution
The fourth proportional to 313,343.80, 470,015.70 and 91,727.80 is: 137,591.70
Step by Step Solution
- Step 1: Write the proportion equation
313,343.80 : 470,015.70 = 91,727.80 : x - Step 2: Convert to fraction form
313,343.80/470,015.70 = 91,727.80/x - Step 3: Cross multiply
313,343.80x = 470,015.70 × 91,727.80 - Step 4: Simplify right side
313,343.80x = 43,113,506,126.46 - Step 5: Solve for x
x = 43,113,506,126.46/313,343.80 - Step 6: Final answer
x = 137,591.70
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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.