Finding the Fourth Proportional to 229,913.62, 317,277.74 and 129,311.62
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Solution
The fourth proportional to 229,913.62, 317,277.74 and 129,311.62 is: 178,448.32
Step by Step Solution
- Step 1: Write the proportion equation
229,913.62 : 317,277.74 = 129,311.62 : x - Step 2: Convert to fraction form
229,913.62/317,277.74 = 129,311.62/x - Step 3: Cross multiply
229,913.62x = 317,277.74 × 129,311.62 - Step 4: Simplify right side
229,913.62x = 41,027,698,549.34 - Step 5: Solve for x
x = 41,027,698,549.34/229,913.62 - Step 6: Final answer
x = 178,448.32
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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.