Finding the Fourth Proportional to 199,318.36, 298,366.98 and 129,057.88
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Solution
The fourth proportional to 199,318.36, 298,366.98 and 129,057.88 is: 193,191.48
Step by Step Solution
- Step 1: Write the proportion equation
199,318.36 : 298,366.98 = 129,057.88 : x - Step 2: Convert to fraction form
199,318.36/298,366.98 = 129,057.88/x - Step 3: Cross multiply
199,318.36x = 298,366.98 × 129,057.88 - Step 4: Simplify right side
199,318.36x = 38,506,609,900.80 - Step 5: Solve for x
x = 38,506,609,900.80/199,318.36 - Step 6: Final answer
x = 193,191.48
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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.