Finding the Fourth Proportional to 317,058.99, 475,605.21 and 80,403.72
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Solution
The fourth proportional to 317,058.99, 475,605.21 and 80,403.72 is: 120,609.82
Step by Step Solution
- Step 1: Write the proportion equation
317,058.99 : 475,605.21 = 80,403.72 : x - Step 2: Convert to fraction form
317,058.99/475,605.21 = 80,403.72/x - Step 3: Cross multiply
317,058.99x = 475,605.21 × 80,403.72 - Step 4: Simplify right side
317,058.99x = 38,240,428,135.38 - Step 5: Solve for x
x = 38,240,428,135.38/317,058.99 - Step 6: Final answer
x = 120,609.82
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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.