Finding the Fourth Proportional to 305,598.18, 458,491.12 and 145,877.93
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Solution
The fourth proportional to 305,598.18, 458,491.12 and 145,877.93 is: 218,861.69
Step by Step Solution
- Step 1: Write the proportion equation
305,598.18 : 458,491.12 = 145,877.93 : x - Step 2: Convert to fraction form
305,598.18/458,491.12 = 145,877.93/x - Step 3: Cross multiply
305,598.18x = 458,491.12 × 145,877.93 - Step 4: Simplify right side
305,598.18x = 66,883,735,508.98 - Step 5: Solve for x
x = 66,883,735,508.98/305,598.18 - Step 6: Final answer
x = 218,861.69
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1.5x scale
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.