Finding the Fourth Proportional to 313,473.20, 470,209.80 and 225,555.80
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Solution
The fourth proportional to 313,473.20, 470,209.80 and 225,555.80 is: 338,333.70
Step by Step Solution
- Step 1: Write the proportion equation
313,473.20 : 470,209.80 = 225,555.80 : x - Step 2: Convert to fraction form
313,473.20/470,209.80 = 225,555.80/x - Step 3: Cross multiply
313,473.20x = 470,209.80 × 225,555.80 - Step 4: Simplify right side
313,473.20x = 106,058,547,606.84 - Step 5: Solve for x
x = 106,058,547,606.84/313,473.20 - Step 6: Final answer
x = 338,333.70
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Similar ratio
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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.