Finding the Fourth Proportional to 389,885.79, 537,817.81 and 234,729.08
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Solution
The fourth proportional to 389,885.79, 537,817.81 and 234,729.08 is: 323,790.92
Step by Step Solution
- Step 1: Write the proportion equation
389,885.79 : 537,817.81 = 234,729.08 : x - Step 2: Convert to fraction form
389,885.79/537,817.81 = 234,729.08/x - Step 3: Cross multiply
389,885.79x = 537,817.81 × 234,729.08 - Step 4: Simplify right side
389,885.79x = 126,241,479,163.89 - Step 5: Solve for x
x = 126,241,479,163.89/389,885.79 - Step 6: Final answer
x = 323,790.92
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.