Finding the Fourth Proportional to 313,965.74, 470,964.90 and 103,620.08
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Solution
The fourth proportional to 313,965.74, 470,964.90 and 103,620.08 is: 155,435.50
Step by Step Solution
- Step 1: Write the proportion equation
313,965.74 : 470,964.90 = 103,620.08 : x - Step 2: Convert to fraction form
313,965.74/470,964.90 = 103,620.08/x - Step 3: Cross multiply
313,965.74x = 470,964.90 × 103,620.08 - Step 4: Simplify right side
313,965.74x = 48,801,420,615.19 - Step 5: Solve for x
x = 48,801,420,615.19/313,965.74 - Step 6: Final answer
x = 155,435.50
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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.