Finding the Fourth Proportional to 385,656.22, 578,857.49 and 186,117.08
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Solution
The fourth proportional to 385,656.22, 578,857.49 and 186,117.08 is: 279,355.70
Step by Step Solution
- Step 1: Write the proportion equation
385,656.22 : 578,857.49 = 186,117.08 : x - Step 2: Convert to fraction form
385,656.22/578,857.49 = 186,117.08/x - Step 3: Cross multiply
385,656.22x = 578,857.49 × 186,117.08 - Step 4: Simplify right side
385,656.22x = 107,735,262,648.00 - Step 5: Solve for x
x = 107,735,262,648.00/385,656.22 - Step 6: Final answer
x = 279,355.70
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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.