Finding the Fourth Proportional to 229,923.69, 317,289.99 and 143,930.09
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Solution
The fourth proportional to 229,923.69, 317,289.99 and 143,930.09 is: 198,620.57
Step by Step Solution
- Step 1: Write the proportion equation
229,923.69 : 317,289.99 = 143,930.09 : x - Step 2: Convert to fraction form
229,923.69/317,289.99 = 143,930.09/x - Step 3: Cross multiply
229,923.69x = 317,289.99 × 143,930.09 - Step 4: Simplify right side
229,923.69x = 45,667,575,230.35 - Step 5: Solve for x
x = 45,667,575,230.35/229,923.69 - Step 6: Final answer
x = 198,620.57
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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.