Finding the Fourth Proportional to 415,723.28, 623,118.36 and 205,508.84
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Solution
The fourth proportional to 415,723.28, 623,118.36 and 205,508.84 is: 308,032.62
Step by Step Solution
- Step 1: Write the proportion equation
415,723.28 : 623,118.36 = 205,508.84 : x - Step 2: Convert to fraction form
415,723.28/623,118.36 = 205,508.84/x - Step 3: Cross multiply
415,723.28x = 623,118.36 × 205,508.84 - Step 4: Simplify right side
415,723.28x = 128,056,331,346.30 - Step 5: Solve for x
x = 128,056,331,346.30/415,723.28 - Step 6: Final answer
x = 308,032.62
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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.