Finding the Fourth Proportional to 427,156.84, 640,985.82 and 227,624.68
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Solution
The fourth proportional to 427,156.84, 640,985.82 and 227,624.68 is: 341,570.54
Step by Step Solution
- Step 1: Write the proportion equation
427,156.84 : 640,985.82 = 227,624.68 : x - Step 2: Convert to fraction form
427,156.84/640,985.82 = 227,624.68/x - Step 3: Cross multiply
427,156.84x = 640,985.82 × 227,624.68 - Step 4: Simplify right side
427,156.84x = 145,904,192,162.04 - Step 5: Solve for x
x = 145,904,192,162.04/427,156.84 - Step 6: Final answer
x = 341,570.54
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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.