Finding the Fourth Proportional to 276,905.15, 415,357.67 and 66,543.08
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Solution
The fourth proportional to 276,905.15, 415,357.67 and 66,543.08 is: 99,814.61
Step by Step Solution
- Step 1: Write the proportion equation
276,905.15 : 415,357.67 = 66,543.08 : x - Step 2: Convert to fraction form
276,905.15/415,357.67 = 66,543.08/x - Step 3: Cross multiply
276,905.15x = 415,357.67 × 66,543.08 - Step 4: Simplify right side
276,905.15x = 27,639,178,330.71 - Step 5: Solve for x
x = 27,639,178,330.71/276,905.15 - Step 6: Final answer
x = 99,814.61
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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.