Finding the Fourth Proportional to 204,073.80, 306,110.70 and 85,705.80
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Solution
The fourth proportional to 204,073.80, 306,110.70 and 85,705.80 is: 128,558.70
Step by Step Solution
- Step 1: Write the proportion equation
204,073.80 : 306,110.70 = 85,705.80 : x - Step 2: Convert to fraction form
204,073.80/306,110.70 = 85,705.80/x - Step 3: Cross multiply
204,073.80x = 306,110.70 × 85,705.80 - Step 4: Simplify right side
204,073.80x = 26,235,462,432.06 - Step 5: Solve for x
x = 26,235,462,432.06/204,073.80 - Step 6: Final answer
x = 128,558.70
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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.