Finding the Fourth Proportional to 422,580.70, 583,163.58 and 228,988.49
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Solution
The fourth proportional to 422,580.70, 583,163.58 and 228,988.49 is: 316,005.31
Step by Step Solution
- Step 1: Write the proportion equation
422,580.70 : 583,163.58 = 228,988.49 : x - Step 2: Convert to fraction form
422,580.70/583,163.58 = 228,988.49/x - Step 3: Cross multiply
422,580.70x = 583,163.58 × 228,988.49 - Step 4: Simplify right side
422,580.70x = 133,537,744,691.38 - Step 5: Solve for x
x = 133,537,744,691.38/422,580.70 - Step 6: Final answer
x = 316,005.31
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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.