Finding the Fourth Proportional to 283,926.99, 391,823.95 and 154,865.50
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Solution
The fourth proportional to 283,926.99, 391,823.95 and 154,865.50 is: 213,716.96
Step by Step Solution
- Step 1: Write the proportion equation
283,926.99 : 391,823.95 = 154,865.50 : x - Step 2: Convert to fraction form
283,926.99/391,823.95 = 154,865.50/x - Step 3: Cross multiply
283,926.99x = 391,823.95 × 154,865.50 - Step 4: Simplify right side
283,926.99x = 60,680,013,056.38 - Step 5: Solve for x
x = 60,680,013,056.38/283,926.99 - Step 6: Final answer
x = 213,716.96
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1.5x scale
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.