Finding the Fourth Proportional to 285,126.08, 393,432.80 and 157,801.37
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Solution
The fourth proportional to 285,126.08, 393,432.80 and 157,801.37 is: 217,743.09
Step by Step Solution
- Step 1: Write the proportion equation
285,126.08 : 393,432.80 = 157,801.37 : x - Step 2: Convert to fraction form
285,126.08/393,432.80 = 157,801.37/x - Step 3: Cross multiply
285,126.08x = 393,432.80 × 157,801.37 - Step 4: Simplify right side
285,126.08x = 62,084,232,086.77 - Step 5: Solve for x
x = 62,084,232,086.77/285,126.08 - Step 6: Final answer
x = 217,743.09
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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.