Finding the Fourth Proportional to 361,905.20, 542,857.80 and 268,593.20
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Solution
The fourth proportional to 361,905.20, 542,857.80 and 268,593.20 is: 402,889.80
Step by Step Solution
- Step 1: Write the proportion equation
361,905.20 : 542,857.80 = 268,593.20 : x - Step 2: Convert to fraction form
361,905.20/542,857.80 = 268,593.20/x - Step 3: Cross multiply
361,905.20x = 542,857.80 × 268,593.20 - Step 4: Simplify right side
361,905.20x = 145,807,913,646.96 - Step 5: Solve for x
x = 145,807,913,646.96/361,905.20 - Step 6: Final answer
x = 402,889.80
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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.