Finding the Fourth Proportional to 419,963.87, 630,035.11 and 135,670.73
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Solution
The fourth proportional to 419,963.87, 630,035.11 and 135,670.73 is: 203,534.95
Step by Step Solution
- Step 1: Write the proportion equation
419,963.87 : 630,035.11 = 135,670.73 : x - Step 2: Convert to fraction form
419,963.87/630,035.11 = 135,670.73/x - Step 3: Cross multiply
419,963.87x = 630,035.11 × 135,670.73 - Step 4: Simplify right side
419,963.87x = 85,477,323,862.69 - Step 5: Solve for x
x = 85,477,323,862.69/419,963.87 - Step 6: Final answer
x = 203,534.95
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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.