Finding the Fourth Proportional to 339,335.99, 509,003.44 and 86,616.44
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Solution
The fourth proportional to 339,335.99, 509,003.44 and 86,616.44 is: 129,924.52
Step by Step Solution
- Step 1: Write the proportion equation
339,335.99 : 509,003.44 = 86,616.44 : x - Step 2: Convert to fraction form
339,335.99/509,003.44 = 86,616.44/x - Step 3: Cross multiply
339,335.99x = 509,003.44 × 86,616.44 - Step 4: Simplify right side
339,335.99x = 44,088,065,920.55 - Step 5: Solve for x
x = 44,088,065,920.55/339,335.99 - Step 6: Final answer
x = 129,924.52
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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.