Finding the Fourth Proportional to 313,987.70, 471,010.35 and 103,626.10
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Solution
The fourth proportional to 313,987.70, 471,010.35 and 103,626.10 is: 155,448.65
Step by Step Solution
- Step 1: Write the proportion equation
313,987.70 : 471,010.35 = 103,626.10 : x - Step 2: Convert to fraction form
313,987.70/471,010.35 = 103,626.10/x - Step 3: Cross multiply
313,987.70x = 471,010.35 × 103,626.10 - Step 4: Simplify right side
313,987.70x = 48,808,965,630.14 - Step 5: Solve for x
x = 48,808,965,630.14/313,987.70 - Step 6: Final answer
x = 155,448.65
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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.