Finding the Fourth Proportional to 323,129.61, 445,628.55 and 202,281.90
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Solution
The fourth proportional to 323,129.61, 445,628.55 and 202,281.90 is: 278,967.28
Step by Step Solution
- Step 1: Write the proportion equation
323,129.61 : 445,628.55 = 202,281.90 : x - Step 2: Convert to fraction form
323,129.61/445,628.55 = 202,281.90/x - Step 3: Cross multiply
323,129.61x = 445,628.55 × 202,281.90 - Step 4: Simplify right side
323,129.61x = 90,142,589,788.25 - Step 5: Solve for x
x = 90,142,589,788.25/323,129.61 - Step 6: Final answer
x = 278,967.28
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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.