Finding the Fourth Proportional to 280,269.55, 386,784.58 and 157,804.10
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Solution
The fourth proportional to 280,269.55, 386,784.58 and 157,804.10 is: 217,776.75
Step by Step Solution
- Step 1: Write the proportion equation
280,269.55 : 386,784.58 = 157,804.10 : x - Step 2: Convert to fraction form
280,269.55/386,784.58 = 157,804.10/x - Step 3: Cross multiply
280,269.55x = 386,784.58 × 157,804.10 - Step 4: Simplify right side
280,269.55x = 61,036,192,540.78 - Step 5: Solve for x
x = 61,036,192,540.78/280,269.55 - Step 6: Final answer
x = 217,776.75
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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.