Finding the Fourth Proportional to 361,873.20, 542,809.80 and 195,985.20
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Solution
The fourth proportional to 361,873.20, 542,809.80 and 195,985.20 is: 293,977.80
Step by Step Solution
- Step 1: Write the proportion equation
361,873.20 : 542,809.80 = 195,985.20 : x - Step 2: Convert to fraction form
361,873.20/542,809.80 = 195,985.20/x - Step 3: Cross multiply
361,873.20x = 542,809.80 × 195,985.20 - Step 4: Simplify right side
361,873.20x = 106,382,687,214.96 - Step 5: Solve for x
x = 106,382,687,214.96/361,873.20 - Step 6: Final answer
x = 293,977.80
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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.