Finding the Fourth Proportional to 289,353.42, 434,030.18 and 120,781.79
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Solution
The fourth proportional to 289,353.42, 434,030.18 and 120,781.79 is: 181,172.71
Step by Step Solution
- Step 1: Write the proportion equation
289,353.42 : 434,030.18 = 120,781.79 : x - Step 2: Convert to fraction form
289,353.42/434,030.18 = 120,781.79/x - Step 3: Cross multiply
289,353.42x = 434,030.18 × 120,781.79 - Step 4: Simplify right side
289,353.42x = 52,422,942,054.42 - Step 5: Solve for x
x = 52,422,942,054.42/289,353.42 - Step 6: Final answer
x = 181,172.71
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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.