Finding the Fourth Proportional to 430,768.96, 646,285.68 and 220,554.48
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Solution
The fourth proportional to 430,768.96, 646,285.68 and 220,554.48 is: 330,899.43
Step by Step Solution
- Step 1: Write the proportion equation
430,768.96 : 646,285.68 = 220,554.48 : x - Step 2: Convert to fraction form
430,768.96/646,285.68 = 220,554.48/x - Step 3: Cross multiply
430,768.96x = 646,285.68 × 220,554.48 - Step 4: Simplify right side
430,768.96x = 142,541,202,083.85 - Step 5: Solve for x
x = 142,541,202,083.85/430,768.96 - Step 6: Final answer
x = 330,899.43
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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.