Finding the Fourth Proportional to 381,271.68, 571,879.58 and 156,571.20
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Solution
The fourth proportional to 381,271.68, 571,879.58 and 156,571.20 is: 234,845.32
Step by Step Solution
- Step 1: Write the proportion equation
381,271.68 : 571,879.58 = 156,571.20 : x - Step 2: Convert to fraction form
381,271.68/571,879.58 = 156,571.20/x - Step 3: Cross multiply
381,271.68x = 571,879.58 × 156,571.20 - Step 4: Simplify right side
381,271.68x = 89,539,871,313.24 - Step 5: Solve for x
x = 89,539,871,313.24/381,271.68 - Step 6: Final answer
x = 234,845.32
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.