Finding the Fourth Proportional to 306,071.75, 459,134.09 and 84,455.75
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Solution
The fourth proportional to 306,071.75, 459,134.09 and 84,455.75 is: 126,690.93
Step by Step Solution
- Step 1: Write the proportion equation
306,071.75 : 459,134.09 = 84,455.75 : x - Step 2: Convert to fraction form
306,071.75/459,134.09 = 84,455.75/x - Step 3: Cross multiply
306,071.75x = 459,134.09 × 84,455.75 - Step 4: Simplify right side
306,071.75x = 38,776,513,499.24 - Step 5: Solve for x
x = 38,776,513,499.24/306,071.75 - Step 6: Final answer
x = 126,690.93
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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.