Finding the Fourth Proportional to 191,294.12, 286,938.84 and 86,038.76
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Solution
The fourth proportional to 191,294.12, 286,938.84 and 86,038.76 is: 129,057.09
Step by Step Solution
- Step 1: Write the proportion equation
191,294.12 : 286,938.84 = 86,038.76 : x - Step 2: Convert to fraction form
191,294.12/286,938.84 = 86,038.76/x - Step 3: Cross multiply
191,294.12x = 286,938.84 × 86,038.76 - Step 4: Simplify right side
191,294.12x = 24,687,861,989.44 - Step 5: Solve for x
x = 24,687,861,989.44/191,294.12 - Step 6: Final answer
x = 129,057.09
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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.