Finding the Fourth Proportional to 204,373.65, 306,248.18 and 85,980.09
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Solution
The fourth proportional to 204,373.65, 306,248.18 and 85,980.09 is: 128,838.75
Step by Step Solution
- Step 1: Write the proportion equation
204,373.65 : 306,248.18 = 85,980.09 : x - Step 2: Convert to fraction form
204,373.65/306,248.18 = 85,980.09/x - Step 3: Cross multiply
204,373.65x = 306,248.18 × 85,980.09 - Step 4: Simplify right side
204,373.65x = 26,331,245,648.84 - Step 5: Solve for x
x = 26,331,245,648.84/204,373.65 - Step 6: Final answer
x = 128,838.75
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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.