Finding the Fourth Proportional to 422,224.68, 633,342.51 and 137,913.06
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Solution
The fourth proportional to 422,224.68, 633,342.51 and 137,913.06 is: 206,871.38
Step by Step Solution
- Step 1: Write the proportion equation
422,224.68 : 633,342.51 = 137,913.06 : x - Step 2: Convert to fraction form
422,224.68/633,342.51 = 137,913.06/x - Step 3: Cross multiply
422,224.68x = 633,342.51 × 137,913.06 - Step 4: Simplify right side
422,224.68x = 87,346,203,582.18 - Step 5: Solve for x
x = 87,346,203,582.18/422,224.68 - Step 6: Final answer
x = 206,871.38
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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.