Finding the Fourth Proportional to 283,107.50, 390,691.12 and 155,785.84
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Solution
The fourth proportional to 283,107.50, 390,691.12 and 155,785.84 is: 214,985.98
Step by Step Solution
- Step 1: Write the proportion equation
283,107.50 : 390,691.12 = 155,785.84 : x - Step 2: Convert to fraction form
283,107.50/390,691.12 = 155,785.84/x - Step 3: Cross multiply
283,107.50x = 390,691.12 × 155,785.84 - Step 4: Simplify right side
283,107.50x = 60,864,144,309.74 - Step 5: Solve for x
x = 60,864,144,309.74/283,107.50 - Step 6: Final answer
x = 214,985.98
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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.