Finding the Fourth Proportional to 258,239.57, 386,526.08 and 133,408.85
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Solution
The fourth proportional to 258,239.57, 386,526.08 and 133,408.85 is: 199,682.80
Step by Step Solution
- Step 1: Write the proportion equation
258,239.57 : 386,526.08 = 133,408.85 : x - Step 2: Convert to fraction form
258,239.57/386,526.08 = 133,408.85/x - Step 3: Cross multiply
258,239.57x = 386,526.08 × 133,408.85 - Step 4: Simplify right side
258,239.57x = 51,565,999,160.76 - Step 5: Solve for x
x = 51,565,999,160.76/258,239.57 - Step 6: Final answer
x = 199,682.80
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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.