Finding the Fourth Proportional to 229,914.62, 317,279.10 and 129,312.62
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Solution
The fourth proportional to 229,914.62, 317,279.10 and 129,312.62 is: 178,449.69
Step by Step Solution
- Step 1: Write the proportion equation
229,914.62 : 317,279.10 = 129,312.62 : x - Step 2: Convert to fraction form
229,914.62/317,279.10 = 129,312.62/x - Step 3: Cross multiply
229,914.62x = 317,279.10 × 129,312.62 - Step 4: Simplify right side
229,914.62x = 41,028,191,692.24 - Step 5: Solve for x
x = 41,028,191,692.24/229,914.62 - Step 6: Final answer
x = 178,449.69
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.