Finding the Fourth Proportional to 395,408.36, 592,989.89 and 142,655.99
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Solution
The fourth proportional to 395,408.36, 592,989.89 and 142,655.99 is: 213,939.74
Step by Step Solution
- Step 1: Write the proportion equation
395,408.36 : 592,989.89 = 142,655.99 : x - Step 2: Convert to fraction form
395,408.36/592,989.89 = 142,655.99/x - Step 3: Cross multiply
395,408.36x = 592,989.89 × 142,655.99 - Step 4: Simplify right side
395,408.36x = 84,593,560,587.14 - Step 5: Solve for x
x = 84,593,560,587.14/395,408.36 - Step 6: Final answer
x = 213,939.74
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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.